Earbuds / Compare

Sennheiser MOMENTUM True Wireless 4 vs Technics EAH-AZ80

A

Product A: Sennheiser

MOMENTUM True Wireless 4

94 of 166 known

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B

Product B: Technics

EAH-AZ80

79 of 166 known

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Every value links to where we found it.

Only differences

ASennheiser MOMENTUM True Wireless 4

BTechnics EAH-AZ80

General

7 of 8 differ

Series

MOMENTUM3Maker product pageus.sennheiser-hearing.com/products/momentum-true-wireless-4Read 6 October 2026Site menu Headphones by Series lists MOMENTUM Headphones. Product name MOMENTUM True Wireless 4

Not available

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

MTW4, MTW4 R, MTW4 L, MTW4 C, 700365, 700366, 700367, 700441, 7004491Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Cover and specifications: Model MTW4, MTW4 R, MTW4 L, MTW4 C. Article numbers 700365, 700366, 700367, 700441 and 700449 come from the maker's stores2Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 20263Maker product pageus.sennheiser-hearing.com/products/momentum-true-wireless-4Read 6 October 2026Article No. per colour, e.g. 700367 Black Copper

EAH-AZ80E-K, EAH-AZ80E-S, EAH-AZ80E-A9Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/technics-eah-az80-hybrid-noise-cancelling-true-wireless-in-ear-headphones-blue.htmlRead 10 October 2026Harvey Norman New Zealand lists EAH-AZ80E-K Black, EAH-AZ80E-S Silver and EAH-AZ80E-A Blue. The E suffix is the European and New Zealand model.

GTIN / EAN

4260752332408, 4260752332415, 4260752332422, 4260752333351, 42607523333992Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026Shopify product data of the EU store: EAN per colour

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

8 January 20245Press releasenewsroom.sennheiser.com/sennheiser-triples-down-at-ces-24Read 6 October 2026Las Vegas, January 8th, 2024: debut at CES

Not available

Status

Available2Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026EU maker store sells all five colours with Add to Cart in October 2026. The US maker store marks the product End of Life

Available1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026The maker still lists the product on its support site.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Sennheiser MOMENTUM True Wireless 511Reviewwhathifi.com/headphones/wireless-earbuds/sennheisers-flagship-earbuds-are-back-to-battle-bose-and-sony-and-they-could-have-an-ace-up-their-sleeveRead 23 October 2026What Hi-Fi calls the MOMENTUM True Wireless 5 the sequel to the MOMENTUM True Wireless 4.

Technics EAH-AZ10011Reviewwhathifi.com/news/technics-celebrates-60th-anniversary-with-az100-flagship-wireless-earbudsRead 23 October 2026What Hi-Fi calls the EAH-AZ80 the previous flagship earbuds that the EAH-AZ100 updates.12Reviewtechradar.com/audio/earbuds-airpods/technics-eah-az100-reviewRead 23 October 2026TechRadar's review calls the EAH-AZ80 the model the EAH-AZ100 replaces.

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$299.955Press releasenewsroom.sennheiser.com/sennheiser-triples-down-at-ces-24Read 6 October 2026Available to pre-order on February 15th for $299.95 USD / $429.95 CAD

$299.994Press articlewhathifi.com/news/technics-new-anc-wireless-earbuds-take-aim-at-bose-and-sony-flagship-rivalsRead 10 October 2026Launch prices stated as 259 GBP, 299 USD and 499 AUD. SoundGuys states 299.99 USD original price.5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 2026Tested at 299 USD.8Reviewsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 2026SoundGuys lists an original price of 299.99 USD. Creative Bloq reports 299.99 USD since release. Pocket-lint states a higher price. SoundGuys lists a later MSRP of 199.99 USD.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€299.996Press releasenewsroom.sennheiser.com/sennheiser-triples-down-at-ces-24-vd4darRead 6 October 2026Available to pre-order on February 15th for £259.99 / €299.99 EUR

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, CA, GB, DE2Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026DE: EU maker store, prices incl. VAT3Maker product pageus.sennheiser-hearing.com/products/momentum-true-wireless-4Read 6 October 2026US maker store, listed at USD 299.95. Marked End of Life on the page in October 20265Press releasenewsroom.sennheiser.com/sennheiser-triples-down-at-ces-24Read 6 October 2026CA: launch price in CAD6Press releasenewsroom.sennheiser.com/sennheiser-triples-down-at-ces-24-vd4darRead 6 October 2026GB: launch price in GBP

Not available

ColoursiThe maker's own colour names

Black Graphite, White Silver, Black Copper, Gold, Denim2Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026Colour selector: Black Graphite, Black Copper, White Silver, Gold, Denim3Maker product pageus.sennheiser-hearing.com/products/momentum-true-wireless-4Read 6 October 2026Same five colours as the EU store

Deep Pure Black, Silver, Midnight Blue4Press articlewhathifi.com/news/technics-new-anc-wireless-earbuds-take-aim-at-bose-and-sony-flagship-rivalsRead 10 October 2026Launch finishes deep pure black and silver. Midnight Blue was added in September 2024.10Press articleavcesar.com/technics-eah-az80-disponible-en-coloris-midnight-blue-42899Read 10 October 2026Reports the EAH-AZ80 launched in spring 2023 in black and silver and added Midnight Blue in September 2024.

Segment

Not available

Music2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Design

1 of 4 differ

Form factoriIn-ear seals the ear canal with a tip. Semi-in-ear rests in the outer ear without a seal. Open-ear leaves the ear canal unobstructed.

In-ear1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: wearing style True Wireless stereo earbuds, ear coupling ear-canal

In-ear2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Bud shapeiStem describes an extending control or microphone stalk. Stemless describes a compact body without a stalk.

Not available

Stemless2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Part names figure on page 13 shows a compact housing with touch sensor, wear sensors, microphones and earpiece, and no stalk.

Use one bud aloneiWhich earbud can operate alone. This does not mean two earbuds can play from different sources.

Either bud1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 27: The right or left earbud can be used alone4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026

Either bud2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Page 28: either earphone can be used alone. The example uses the right earphone. Audio is mono.

RGB lighting

Not available

Not available

Drivers and sound

7 of 17 differ

Drivers per budiAudio transducers in one earbud. Rows distinguish their type, acoustic role and published diameter. Do not count microphones.

ASennheiser MOMENTUM True Wireless 4

Type	Diameter (mm)	Count per earbud
Dynamic	7	1

Source1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: transducer principle dynamic, transducer size 7 mm. One transducer size is listed per earbud

BTechnics EAH-AZ80

Type	Role	Diameter (mm)	Count per earbud
Dynamic	Full range	10	1

Source2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Driver units 10 mm for the EAH-AZ80. The maker does not state the diaphragm technology or count in the manual. See other sources.5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 2026A pair of 10 mm full-range, free-edge aluminium dynamic drivers. One per earbud.6Reviewsoundguys.com/product/technics-eah-az80Read 10 October 2026

Driver typeiPublished transducer technology. High-excursion, composite and neodymium do not by themselves establish a driver type.

Dynamic1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: transducer principle dynamic

Dynamic5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 20266Reviewsoundguys.com/product/technics-eah-az80Read 10 October 2026SoundGuys catalog lists driver count 1, size 10 mm, type dynamic.

Driver sizeiLargest explicitly published circular driver diameter in one earbud. A rectangular driver width is not a diameter.

7mm=CalculatedFrom Drivers per bud

10mm=CalculatedFrom Drivers per bud

Drivers per budiTotal audio transducers in one earbud, summed from explicit driver quantities. A row with an unknown quantity makes the total unknown.

1=CalculatedFrom Drivers per bud

1=CalculatedFrom Drivers per bud

Diaphragm material

Not available

Free-edge aluminium diaphragm5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 2026

Frequency responseiPublished acoustic frequency response of the earbuds. Codec transmission bandwidth alone does not qualify. Conditions belong in the source note.

Min5 HzMax21 kHz1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: 5 Hz to 21 kHz

Min20 HzMax40 kHz5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 202620 Hz to 40 kHz.6Reviewsoundguys.com/product/technics-eah-az80Read 10 October 2026

Impedance

Not available

Not available

SensitivityiPublished acoustic sensitivity. The electrical reference and frequency must be stated in sensitivity_reference or the source note.

107dB1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: sound pressure level (SPL) 107 dB (1 kHz/1 mW)

Not available

Sensitivity reference

Per 1 mW1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026107 dB at 1 kHz/1 mW

Not available

Max sample rateiHighest supported audio sample rate under the codec and source-device conditions in the source note. This does not establish lossless playback.

96kHz1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 38: High Resolution Audio mode via aptX Adaptive transmits at 96 kHz and 24 bits. Needs an aptX Adaptive source

96kHz9Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/technics-eah-az80-hybrid-noise-cancelling-true-wireless-in-ear-headphones-blue.htmlRead 10 October 2026Footnote: delivered in 96 kHz/24-bit LDAC when connected by Bluetooth to a compatible device. The maker manual (page 38) requires an LDAC 990 kbps source for wireless high-resolution quality.

Max bit depthiHighest supported audio bit depth under the codec and source-device conditions in the source note. Bluetooth version alone does not establish this.

24bits1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 38: High Resolution Audio mode via aptX Adaptive transmits at 96 kHz and 24 bits. Needs an aptX Adaptive source

24bits9Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/technics-eah-az80-hybrid-noise-cancelling-true-wireless-in-ear-headphones-blue.htmlRead 10 October 2026Footnote: delivered in 96 kHz/24-bit LDAC when connected by Bluetooth to a compatible device.

Adaptive EQiAn inner mic tunes the sound to your ear in real time

Not available

Not available

Personalised soundiA profile from a hearing test or ear scan

Yes4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Sound Personalization: guided listening test developed with the Fraunhofer Institute

Not available

Onboard EQ

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 38: The sound effects are stored in the earbuds and stay active with other Bluetooth devices

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Custom EQ bandsiNumber of independently adjustable custom equalizer frequency bands. Availability may require current firmware, an app or a compatible device.

52Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 20265-band equalizer

52Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Custom sound setting offers 5 sound ranges.

EQ presetsiNamed equalizer sound presets. Noise-control modes and spatial-audio modes are separate features.

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

None of 2 known

Spatial audioiNamed spatial or surround audio processing supported with the source and platform conditions stated in the source note.

Not available

Not available

Head trackingiSpatial audio changes with head movement. Static spatial processing alone does not qualify. Compatible device or content requirements belong in the source note.

Not available

Not available

Noise cancelling

1 of 11 differ

Active noise cancelling

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Page 28 and the app pages describe noise cancelling and ambient sound control.

ANC typeiFeedforward uses exterior microphones. Feedback uses interior microphones. Hybrid uses both. Adaptive control is separate from microphone placement.

Hybrid1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: Hybrid Adaptive ANC technology

Hybrid4Press articlewhathifi.com/news/technics-new-anc-wireless-earbuds-take-aim-at-bose-and-sony-flagship-rivalsRead 10 October 2026Dual Hybrid Noise Cancelling combines a digital software filter with feed-forward and feed-back microphones.5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 2026Each earbud has feed-forward and feed-back microphones plus a software filter and a hardware filter.

ANC microphones in both earbudsiPhysical microphones used by ANC across the pair. A shared call and ANC microphone counts once. Case microphones and vibration sensors are excluded.

44Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026The advanced system uses four microphones to continuously monitor ambient noise

44Press articlewhathifi.com/news/technics-new-anc-wireless-earbuds-take-aim-at-bose-and-sony-flagship-rivalsRead 10 October 2026Eight microphones in total, four in each bud: feed-back, feed-forward, voice detection and talk. Two ANC microphones per bud.5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 2026

Adaptive ANCiANC strength or calibration adjusts automatically to noise, fit or ear acoustics. The source note states the adjustment conditions.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 31: Adaptive mode reduces noise depending on the noise conditions

Not available

ANC levelsiNumber of selectable ANC strength levels. Excludes ANC off, transparency and activity profiles unless they explicitly set distinct strength levels.

Not available

Not available

ANC attenuation (claimed)iManufacturer maximum claimed noise attenuation. Frequency and measurement conditions belong in the source note. This is not reviewer-measured overall attenuation.

Not available

Not available

Transparency mode

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Adjustable transparency

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 32: The intensity of Transparency Mode can be adjusted in the app

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Ambient Sound Transparent mode has a 0 to 100 level slider. Attention mode has no level.

Automatic ANC and transparency blendiAutomatically blends active cancellation with ambient sound. Automatic activity-based switching between separate modes alone does not qualify.

Not available

Not available

Conversation detection

Not available

Not available

Wind noise reductioniA documented physical design or processing feature for reducing wind noise. The source note distinguishes mesh or shape changes from selectable processing.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 31: selectable Anti Wind ANC mode reduces wind or movement noise. Processing mode, not a mesh

Yes4Press articlewhathifi.com/news/technics-new-anc-wireless-earbuds-take-aim-at-bose-and-sony-flagship-rivalsRead 10 October 2026Improved ambient noise reduction cuts environmental noise when it is windy. This is call processing.

Measured

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Frequency response notes (measured)iMeasured by a reviewer, not claimed by the maker

Warm sound signature10Measurementrtings.com/headphones/reviews/sennheiser/momentum-true-wireless-4Read 6 October 2026Sound Signature: Warm. Full measurements are members only and were not read

SoundGuys finds strong bass emphasis, a strong emphasis between 4 and 8 kHz and an under-emphasized ear-gain region against its target.7Measurementsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 2026Written objective assessment of the measured response with firmware 1.035. High emphasis in the 4 to 8 kHz region and strong bass. The ear-gain region is a little underemphasized.

Bass amount (measured)iDeviation from the review source target in the bass range. Positive means more bass. Target, test method and settings belong in the source note.

3dB10Measurementrtings.com/headphones/reviews/sennheiser/momentum-true-wireless-4Read 6 October 2026Emphasized (3 dB), test bench 2.3

Not available

Treble amount (measured)iDeviation from the review source target in the treble range. Positive means more treble. Values from different targets may not be directly comparable.

-4dB10Measurementrtings.com/headphones/reviews/sennheiser/momentum-true-wireless-4Read 6 October 2026Underemphasized (-4 dB), test bench 2.3

Not available

Deviation from target (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Consistency between fittings (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Harmonic distortion (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Sound leakage (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Noise isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Noise isolation, best (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Passive isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Call quality notes (measured)iMeasured by a reviewer, not claimed by the maker

Not available

SoundGuys lab recordings in ideal, office, street, windy and reverberant conditions. The reviewer found noise rejected well.7Measurementsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 2026Lab recordings. Noise is rejected well, though nothing is perfect.

Mic low-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratio (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Latency (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Bluetooth latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

2.4 GHz latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Latency in game mode (measured)iThe best case the buds can reach. Measured by a reviewer

Not available

Not available

Battery life (measured)iReviewer-tested operation from one full charge of the earbuds. Excludes case recharges. ANC, codec, connection, volume and tested edition belong in the row or source note.

ASennheiser MOMENTUM True Wireless 4

Hours (h)
7.75

Source9Reviewsoundguys.com/sennheiser-momentum-true-wireless-4-review-111429Read 6 October 2026Standardized battery test: 7 hours 45 minutes of music, peaking at 75 dB. Firmware 5.3.5. ANC state not stated

BTechnics EAH-AZ80

Hours (h)
6.67

Source7Measurementsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 2026SoundGuys standardized battery test lasted 6 h 40 min on one charge, stored as 6.667 h. Firmware 1.035 and app 3.3.3. Codec and noise-control mode are not stated.

Longest tested use per chargeiHighest earbuds-only duration among stored reviewer tests. Modes and settings may differ between tests and products.

7.75h=CalculatedFrom Battery life (measured)

6.67h=CalculatedFrom Battery life (measured)

Battery life with case (measured)iReviewer-tested total including earbuds and case recharges. Do not calculate this by multiplying one-charge runtime by claimed recharge count.

Not available

Not available

Full charge time (measured)iBuds in the case, 0 to 100 %. Measured by a reviewer

Not available

Not available

Weight per bud (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Microphones and calls

5 of 7 differ

Voice microphones in both earbudsiPhysical call and beamforming microphones across the pair. Excludes case microphones and vibration sensors. Shared ANC microphones can also count here when used for calls.

62Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026Its high-quality 6-mic system ensures you can be heard perfectly during calls

42Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Manual part names list microphones for noise cancelling and microphones for calls. What Hi-Fi? identifies a talk microphone and a voice detection microphone in each earbud, so four call microphones across the pair.4Press articlewhathifi.com/news/technics-new-anc-wireless-earbuds-take-aim-at-bose-and-sony-flagship-rivalsRead 10 October 20265Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 2026

All microphones in both earbudsiEvery physical microphone across the pair, including call and ANC microphones. Shared microphones count once. Excludes the charging case and voice vibration sensors.

61Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: 3 microphones per earbud (speech and ANC), MEMS

84Press articlewhathifi.com/news/technics-new-anc-wireless-earbuds-take-aim-at-bose-and-sony-flagship-rivalsRead 10 October 20265Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 20269Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/technics-eah-az80-hybrid-noise-cancelling-true-wireless-in-ear-headphones-blue.htmlRead 10 October 2026Eight built-in monaural MEMS microphones.

Bone conduction voice sensoriA dedicated bone or jaw conduction sensor for detecting speech vibrations. A microphone or speech-detecting accelerometer alone does not prove this architecture.

Not available

Not available

Mic noise reduction

AI4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026AI-supported voice pickup (firmware update required)

Not available

Call audio bandwidthiHighest supported call-audio bandwidth. Compatible phone, operating system, call app or network requirements belong in the source note.

Super wideband4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Supports an advanced call mode called Super Wideband Audio

Not available

Mic mute controliAn earbud control that mutes the microphone during calls. Includes touch or pressure gestures and physical buttons. Phone/app-only controls do not qualify.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 36: Tap the right or left touch panel 1x during a call to mute

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Double tap on the right earphone mutes your voice during a call, and a double tap during mute unmutes.

SidetoneiHear your own voice in calls

Yes3Maker product pageus.sennheiser-hearing.com/products/momentum-true-wireless-4Read 6 October 2026A 6-mic system, adjustable sidetone, and call virtualization for clear calls

Not available

Connectivity

9 of 18 differ

Chip

Qualcomm S5 Sound Gen 25Press releasenewsroom.sennheiser.com/sennheiser-triples-down-at-ces-24Read 6 October 2026Built on the Qualcomm S5 Sound Gen 2 platform and Snapdragon Sound Technology

Not available

Connections

Bluetooth1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Bluetooth2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Bluetooth

5.41Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: Bluetooth 5.4 certified, class 1. FAQ: some early packaging says 5.3

5.31Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 20262Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Bluetooth codecs

SBC, AAC, aptX, aptX Adaptive, aptX Lossless, LC31Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: aptX, aptX Adaptive/Lossless, AAC, SBC, Auracast Broadcast Audio, LC3

SBC, AAC, LDAC1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 20262Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 20268Reviewsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 2026iOS is limited to AAC. LDAC needs an Android phone and is enabled in the app.

Bluetooth profiles

AVRCP, A2DP, HFP, TMAP, PBP1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: AVRCP, A2DP, HFP, TMAP, PBP

A2DP, AVRCP, HSP, HFP1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 20262Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

LE Audio

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 20: Bluetooth 5.4, LE Audio and Auracast broadcast audio certified. Launch firmware lacked LE Audio, added by a firmware update

Not available

Auracast

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Pages 21 to 26: Auracast transmitters are selected in the Smart Control app. Added by a firmware update

Not available

MultipointiConcurrent Bluetooth connections to multiple source devices. Pairing memory and switching through a manufacturer account alone do not qualify.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 20264Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Can be connected to two of the paired devices simultaneously

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Up to 3 Bluetooth devices at the same time (page 29).8Reviewsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 2026

Multipoint devicesiMaximum source devices concurrently connected by Bluetooth, not the number remembered in pairing history.

21Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: number of active connections 2

32Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 20266Reviewsoundguys.com/product/technics-eah-az80Read 10 October 2026

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Not available

Paired devices rememberediMaximum remembered Bluetooth source pairings. This is separate from simultaneous multipoint connections.

61Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 20: saves the connection profiles of up to six Bluetooth devices

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Not available

Not available

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

Not available

10m2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 20266Reviewsoundguys.com/product/technics-eah-az80Read 10 October 2026SoundGuys catalog lists 10 m. The maker manual also names a Bluetooth range of about 10 m.

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

Simultaneous 2.4 GHz and Bluetooth audioiBoth connection types can play audio together. Quick switching between independent modes does not qualify.

Not available

Not available

Latency

3 of 3 differ

Low latency mode

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 39: Low Latency mode in the Smart Control app, for all Bluetooth codecs

Not available

Claimed latency

ASennheiser MOMENTUM True Wireless 4

Connection	Mode	Latency (ms)
Bluetooth	Snapdragon Sound in Bluetooth LE Audio mode	20

Source4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Gaming with up to approx. 20 ms latency needs an audio device that supports Snapdragon Sound in Bluetooth LE Audio mode

BTechnics EAH-AZ80

Not available

Lowest claimed latency

20ms=CalculatedFrom Claimed latency

Not available

Compatibility

2 of 4 differ

PlatformsiPlatforms with documented audio support. App availability and advanced features can be more limited. Edition-specific support is listed in variants.

Android, iOS, Windows2Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026App support: Sennheiser Smart Control app for iOS and Android4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Windows: FAQ covers Windows PC audio profiles MOMENTUM TW4 Stereo and Hands-Free

Android, iOS6Reviewsoundguys.com/product/technics-eah-az80Read 10 October 20268Reviewsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 2026

Connection per platformiDocumented audio connection for each platform. USB-C phone routes require a compatible port. Platform edition and microphone restrictions belong in source notes or feature requirements.

Not available

Not available

Features that need a specific deviceiDevice, operating system, firmware, codec, content, account or region requirements for a named feature.

ASennheiser MOMENTUM True Wireless 4

Feature	Needs
Lossless Audio mode (aptX Lossless, 16 bit/44.1 kHz)	Snapdragon Sound certified smartphone or audio source that supports aptX Adaptive Lossless
High Resolution Audio mode (24 bit/96 kHz)	Audio source that supports aptX Adaptive and audio material in High Resolution quality
Latency of approx. 20 ms	Audio device that supports Snapdragon Sound in Bluetooth LE Audio mode
Eco mode	Devices that support aptX transmission
Bluetooth LE Audio, LC3 and Auracast	Firmware update

Source1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Pages 38 to 39 for Eco, High Resolution and Lossless modes4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Lossless needs a Snapdragon Sound certified source with aptX Adaptive Lossless. LE Audio and Auracast came by firmware update

BTechnics EAH-AZ80

Feature	Needs
LDAC	Turn on LDAC for headphones in the Technics Audio Connect app and set the connection mode to Prioritize sound quality. The source device must support LDAC. iPhones use AAC.
LDAC with three-device multipoint	The maker manual says to lower the LDAC bit rate on the playback device when LDAC and multipoint are used together. Retailer listings state LDAC playback is incompatible with three connected devices.
Amazon Alexa	Needs the Amazon Alexa app. Set up through Select voice assistant in the Technics Audio Connect app.

Source2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026LDAC setup on page 38. The multipoint note on page 45 says to lower the LDAC bit rate on the playback device when both are used. Alexa setup on page 29.

Official licence

Not available

Not available

Battery and charging

9 of 13 differ

Battery per budiBattery cell capacity of one earbud. The source note states typical or rated capacity. Charging input current is not capacity.

Not available

85mAh1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026Panasonic USA specification page: earphones 3.7 V lithium polymer 85 mAh.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

User-replaceable earbud batteryiThe maker documents normal battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

Not available

Claimed battery lifeiManufacturer maximum runtime under the stated mode, codec and spatial processing state. Name the spatial or immersive processing mode and other conditions in source notes. Omit unspecified settings. with_case false means one charge of the earbuds. true means earbuds plus case recharges.

ASennheiser MOMENTUM True Wireless 4

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	7.5
ANC on	Not available	No	7
ANC off	AAC	Yes	30

Source2Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026Battery lifespan: up to 7.5 hrs with earbuds (ANC off), up to 7.0 hrs (ANC on), up to 30 hrs overall with charging case. Test condition iPhone, mid volume level 85 dB. The manual pairs 7.5 h with ANC activated, which reverses ANC on and off4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 20267.5 h and 30 h total confirmed with iPhone within 1 m, AAC codec, medium volume, ANC and Transparency Mode off, custom EQ off

BTechnics EAH-AZ80

Mode	Codec	Includes case recharges	Hours (h)
ANC on	AAC	No	7
ANC off	AAC	No	7.5
ANC on	SBC	No	6.5
ANC off	SBC	No	7
ANC on	LDAC	No	4.5
ANC off	LDAC	No	5
ANC on	AAC	Yes	24
ANC off	AAC	Yes	25
ANC on	SBC	Yes	23
ANC off	SBC	Yes	24
ANC on	LDAC	Yes	16
ANC off	LDAC	Yes	17
Call	Not available	No	4.5
Call	Not available	No	5.5

Source1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026Approx. hours from the maker table. Earphones: ANC on AAC 7.0, ANC off AAC 7.5, ANC on LDAC 4.5, ANC off LDAC 5.0. Earphones plus cradle: ANC on AAC 24, ANC off AAC 25, ANC on SBC 23, ANC off SBC 24, ANC on LDAC 16, ANC off LDAC 17. Call time 4.5 h with JustMyVoice on and 5.5 h with it off. SBC earphone-only rows (6.5 and 7.0 h) come from the manual. Times may be shorter in use.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Manual page 61 specification table, approx. hours: earphones ANC on/off with AAC 7.0/7.5, SBC 6.5/7.0, LDAC 4.5/5.0. Earphones with cradle: AAC 24/25, SBC 23/24, LDAC 16/17. Call time 4.5 h with JustMyVoice on, 5.5 h off. Each row may be shorter in use.

Longest claimed use per chargeiHighest earbuds-only runtime among all stored modes. This can be ANC off, Hearing Aid, heart-rate or call use. Read the battery table and source conditions.

7.5h=CalculatedFrom Claimed battery life

7.5h=CalculatedFrom Claimed battery life

Playback per charge with ANC (claimed)iHighest claimed earbuds-only playback with ANC enabled. Codec and spatial-audio conditions belong in the source note.

7h=CalculatedFrom Claimed battery life

7h=CalculatedFrom Claimed battery life

Playback per charge without ANC (claimed)iHighest claimed earbuds-only playback with ANC disabled. Codec and volume conditions belong in the source note.

7.5h=CalculatedFrom Claimed battery life

7.5h=CalculatedFrom Claimed battery life

Total with case (claimed)iHighest claimed runtime including the initial earbud charge and all case recharges. It is not the case recharge runtime alone.

30h=CalculatedFrom Claimed battery life

25h=CalculatedFrom Claimed battery life

Total with case and ANC (claimed)iClaimed total playback with ANC, including the initial earbud charge and case recharges.

Not available

24h=CalculatedFrom Claimed battery life

Talk time (claimed)

Not available

5.5h=CalculatedFrom Claimed battery life

Full charge time, budsiTime to charge discharged earbuds to full in the case. Excludes charging the case itself or a combined buds-and-case result.

Not available

120min1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026Earphones about 2 hours from empty to full.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Charging guidanceiPublished charging guidance or estimates that do not separate earbuds and case. Preserve the maker’s component scope and limits. Do not assign an unspecified or combined estimate to a component-specific numeric field.

Not available

Maker lists charging from empty to full at 25 degrees C: earphones about 2 hours, charging cradle about 2.5 hours via USB, earphones with the cradle about 3 hours via USB.1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026Maker note: the cradle and combined times apply when charging via USB.

Quick charge timeiCharge duration corresponding to quick_charge_playback_h. Source note states earbuds-only or case-inclusive charging and playback settings.

8min1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 16 and specifications: approx. 8 minutes of charging for approx. 1 hour of music playback

15min1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 20262Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Earbud playback after quick chargeiEarbuds-only runtime after quick_charge_min of charging. A claimed case-inclusive total does not qualify. ANC, codec and volume conditions belong in the source note.

1h1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 16 and specifications: approx. 8 minutes of charging for approx. 1 hour of music playback

1.17h1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 202615 minutes of charging gives about 70 minutes with noise cancelling on and AAC. Earbuds-only. Stored as 70/60 h.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Charging case

3 of 10 differ

Case batteryiCharging-case battery cell capacity. The source note distinguishes typical, rated and output capacity. USB output capacity alone does not qualify.

820mAh1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: charging case 3.6 V, 820 mAh, 2.952 Wh2Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026Battery type: charging case 820 mAh

700mAh2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Manual page 60 lists the AZ80 charging cradle at 700 mAh and the AZ60M2 at 650 mAh. The Panasonic USA web page lists 650 mAh for the AZ80, which matches the AZ60M2 line. The manual is preferred.

User-replaceable case batteryiThe maker documents normal case battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

Not available

Case charging port

USB-C1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

USB-C1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026

Case full charge timeiBy cable, 0 to 100 %. A time the maker gives with the earbuds inside the case counts, and the source note says so.

Not available

150min1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026Charging cradle about 2.5 hours, by USB.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Wireless charging

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Page 20: the charging cradle charges on a separately sold Qi standard certified wireless charger.5Reviewtechradar.com/reviews/technics-eah-az80-true-wireless-earbuds-reviewRead 10 October 20268Reviewsoundguys.com/panasonic-technics-eah-az80-review-122799Read 10 October 20269Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/technics-eah-az80-hybrid-noise-cancelling-true-wireless-in-ear-headphones-blue.htmlRead 10 October 2026

Wireless standardsiDocumented case charging standards or supported chargers. Magnetic alignment alone does not establish Qi2 certification.

Qi1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: Qi wireless charging

Qi2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Wireless charging poweriHighest wireless charging input the maker states for the case. The output of a charging pad does not count.

Not available

Not available

Speaker in caseiAn audio speaker physically in the charging case, for locating or status sounds. A microphone in the case is separate.

Not available

Not available

Screen on case

Not available

Not available

Case works as audio transmitteriCase relays external source audio through USB or an analog audio input. A case microphone for recording or calls does not qualify.

No9Reviewsoundguys.com/sennheiser-momentum-true-wireless-4-review-111429Read 6 October 2026You can't use the charging case as a transmitter

Not available

Controls

2 of 5 differ

ControlsiPressure is a force sensor that does not move, such as a stem you squeeze. Button is a key that moves when pressed.

Touch1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Pages 29 to 36: touch control panels, tap and touch-and-hold gestures

Touch2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Earbud volume controliHow earbud controls adjust volume, including a voice command if supported. Phone or app controls alone do not qualify.

Touch1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Pages 29 to 30: touch and hold the right panel for louder, the left panel for quieter

Touch2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Left earphone double tap lowers volume and triple tap raises it.

Gestures

Tap 1x, Tap 2x, Tap 3x, Touch and hold1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Pages 29 to 36: tap 1x, 2x, 3x and touch and hold

Left single tap: play or pause, Left double tap: volume down, Left triple tap: volume up, Left touch and hold 2 seconds: voice assistant, Right single tap: play or pause, Right double tap: next track, Right triple tap: previous track, Right touch and hold 2 seconds: switch between noise cancelling and ambient sound2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Page 30 to 32 default touch table. Controls are customizable in the app (page 39).

Remappable controls

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 39: control functions can be customized in the Smart Control app

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Voice assistant

Siri, Google Assistant1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 33: Siri, Google Assistant or similar, depending on the device

Amazon Alexa, Siri, Google Assistant2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Page 28 names Amazon Alexa and Siri as examples. Select voice assistant in the app. Google Assistant is listed by SoundGuys.6Reviewsoundguys.com/product/technics-eah-az80Read 10 October 2026SoundGuys catalog lists Siri, Google Assistant and Alexa.

Sensors and health

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In-ear detection

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 7: infra-red proximity sensor. Page 33: Smart Pause stops playback when an earbud is removed

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Sensors

Infra-red proximity sensor1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 7: product overview lists an infra-red proximity sensor

Wear sensors, Touch sensors2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Heart rate sensor

Not available

Not available

Skin temperature sensingiA documented skin temperature sensor. This is separate from the operating temperature range or a heart-rate sensor.

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Hearing aid featureiAmplification for mild to moderate hearing loss

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Medical clearances

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Hearing testiA documented hearing assessment feature, including consumer sound-personalization tests. Medical diagnostic clearance must be stated separately.

Yes4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Consumer sound-personalization listening test in the Smart Control app. Not a medical test

Not available

Hearing protectioniLimits sudden loud sounds

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Health features

Not available

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Fit and durability

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Ear tips includediTip sizes supplied with the product, including the pair fitted to the earbuds. Do not list separately sold sizes as included.

XS, S, M, L1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Package contents page 5: silicone ear adapters XS, S, M (pre-mounted) and L

XS1, XS2, S1, S2, M, L, XL1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 20262Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026XS1, XS2, S1, S2, M, L and XL, 2 pieces each, size M attached.

Ear tip materials

Silicone1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Silicone1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026

StabilisersiPhysical stabilizing fittings or structures. Stability bands are separate from fins, wings and ear hooks.

Fins1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Package contents page 5: silicone ear fins S, M (pre-mounted) and L

Not available

Ear tip fit test

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 13: Fit Test function in the Smart Control app

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Dust and water rating, buds

IP541Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Page 3 and specifications: earbuds IP54. The charging case is not splash waterproof

IPX41Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026IPX4 equivalent, earbuds only.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

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Companion app

Sennheiser Smart Control1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Technics Audio Connect2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

App platforms

Android, iOS1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Android, iOS2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

User firmware updates

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026

Yes2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Finding network

Not available

Last location in the app2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026Find headphones in the app plays a sound or shows the location where the headphones and phone were last connected.

Precision findingiUWB in the case

Not available

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Live translation

Not available

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Dimensions and weight

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Weight per budiMass of one earbud. Tip size and approximate values belong in the source note. Do not store pair or case-inclusive mass.

6g(0.2 oz)1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: earbuds approx. 6 g each, charging case approx. 66 g, both earbuds and case approx. 78 g

7g(0.2 oz)1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026Approx. 7 g per earbud, both sides the same.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Bud dimensionsiDimensions of one earbud on the explicitly identified width, height and depth axes. An unlabeled tuple cannot establish those axes.

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Case weightiCharging case mass excluding earbuds. Case-inclusive product mass does not qualify unless the source explicitly gives the empty-case figure.

66g(2.3 oz)1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Specifications table, PDF page 48 to 49: charging case approx. 66 g

50g(1.8 oz)1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026Approx. 50 g for the charging cradle.2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Case dimensionsiCharging-case width, height and depth on explicitly identified source axes. Report conflicting axis labels rather than reorder a tuple by appearance.

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Certifications

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Hi-Res AudioiThe Japan Audio Society logos. Hi-Res Audio Wireless is also written Hi-Res Wireless Audio.

Not available

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Communication certifications

Not available

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FCC IDs

2A3ULMTW48Regulatory filingcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/safety_instruction/Compliance_Information_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026USA: FCC ID 2A3ULMTW4 for the earbuds. No FCC ID for the charging case

Not available

Other certifications

Snapdragon Sound4Maker product pagefirmware.s-consumer-cloud.com/help/products/mtw4/en/faq/index.htmlRead 6 October 2026Snapdragon Sound feature with aptX Lossless

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In the box

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In the box

Earbud R for right ear (model: MTW4 R) and earbud L for left ear (model: MTW4 L), Charging case (model: MTW4 C) with built-in rechargeable battery for the earbuds and wireless charging function, USB charging cable with USB C and USB A connector, approx. 0,4 m, Silicone ear adapters (size XS, S, M (pre-mounted to the earbuds) and L), Silicone ear fins (size S, M (pre-mounted to the earbuds) and L), Quick guide, Safety guide, Compliance sheet1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Package contents, page 5

Earphones (L and R), Charging cradle, USB charging cord (USB-C to USB-C), Earpieces XS1, XS2, S1, S2, M, L and XL, 2 pieces each (size M attached)1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026

Cables included

ASennheiser MOMENTUM True Wireless 4

Type	Length (m)	Count
USB-C to USB-A	0.4	1

Source1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Package contents: USB C to USB A cable, approx. 0.4 m. EU declaration of conformity lists USB-C 400mm

BTechnics EAH-AZ80

Type	Length (m)	Count
USB-C to USB-C charging cord	0.2	1

Source1Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 20262Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

Links

Not compared

Product page

eu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-42Maker product pageeu.sennheiser-hearing.com/en-de/products/momentum-true-wireless-4Read 6 October 2026EU maker store, English

www.technics.com/uk/products/headphones/eah-az80.html3Maker product pagetechnics.com/uk/products/headphones/eah-az80.htmlRead 10 October 2026Maker product page, listed in search results. Automated access to technics.com is denied, so no value is cited from it.

Spec sheet

Not available

help.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az801Maker product pagehelp.na.panasonic.com/answers/features-specifications-technics-headphones-earbuds-model-eah-az80Read 10 October 2026

Manual

cdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdf1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Instruction manual version 07/25 A04, model MTW4, MTW4 R, MTW4 L, MTW4 C

help.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdf2Owner's manualhelp.na.panasonic.com/wp-content/uploads/2023/05/EAHAZ60_AZ80_PNQP1774ZA_ENG.pdfRead 10 October 2026

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-true-wireless-4/Instruction%20manual%20MOMENTUM%20True%20Wireless%204/Instruction_manual_MOMENTUM_True_Wireless_4.pdfRead 6 October 2026Manufacturer declarations page 50: Sonova Consumer Hearing GmbH gives a warranty of 12 months on this product. The maker FAQ names a 2-year global warranty program except USA, Australia, New Zealand and Brazil, so EU buyers may get 2 years

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Both are also in the API. Back to all earbuds.