Earbuds / Compare

Sony LinkBuds Fit vs Technics EAH-AZ100

A

Product A: Sony

LinkBuds Fit

84 of 166 known

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B

Product B: Technics

EAH-AZ100

83 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ASony LinkBuds Fit

BTechnics EAH-AZ100

General

7 of 8 differ

Series

LinkBuds1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026

Not available

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

WF-LS910N, YY29753Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

EAH-AZ100, EAH-AZ100-K, EAH-AZ100-S, EAH-AZ100-N, EAH-AZ100-A1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Spec table model suffixes -N, -A, -K and -S for the EAH-AZ100.2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Owner's manual model EAH-AZ100.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 October 2026Colour options listed as EAH-AZ100-K and EAH-AZ100-S.

GTIN / EAN

Not available

Not available

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

1 October 20245Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026October 1 opens preorder. Actual October retail month independently established below.

7 January 20254Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026Spec table lists the product release date as 7 January 2025. The maker announced the product at CES 2025 on the same date.

Status

Not available

Available4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026The product page links a current Amazon US listing.6Reviewtechradar.com/audio/earbuds-airpods/technics-eah-az100-reviewRead 13 October 2026Current Amazon, Best Buy, Newegg and Walmart prices are listed.

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

Sony LinkBuds S15Reviewm.gsmarena.com/sony_unveils_linkbuds_open_with_open_design_linkbuds_fit_replace_the_linkbuds_s-amp-64762.phpRead 23 October 2026GSMArena says the LinkBuds Fit replaces the LinkBuds S and calls it the sequel to the LinkBuds S.16Reviewtomsguide.com/audio/sony-revives-linkbuds-series-with-a-focus-on-style-and-fit-can-they-beat-boseRead 23 October 2026Tom's Guide says the LinkBuds Fit takes over for the LinkBuds S.

Technics EAH-AZ806Reviewtechradar.com/audio/earbuds-airpods/technics-eah-az100-reviewRead 13 October 2026TechRadar's review calls the EAH-AZ80 the model the EAH-AZ100 replaces.9Reviewwhathifi.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.

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.

Not available

Not available

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

$199.995Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Original maker launch MSRP 199.99 USD. Later SoundGuys commerce widget 229.99 USD is excluded. Before US local sales tax. EUR VAT scope unproved.

$299.994Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026Spec table lists an original price and MSRP of $299.99.

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.

Not available

€2995Reviewt3.com/tech/headphones/technics-az100-reviewRead 13 October 2026Launch prices listed as 259 GBP, 299 USD and 299 EUR.

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

GB, US, JP2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026This exact UK page establishes GB. US launch and Japanese product pages separately establish their own markets.5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 20266Maker product pagesony.jp/headphone/products/LinkBuds_FitRead 5 October 2026

US, EU5Reviewt3.com/tech/headphones/technics-az100-reviewRead 13 October 2026US from the USD price and EU from the euro price.

ColoursiThe maker's own colour names

Black, White, Green, Pink, Violet5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Original US maker launch lists Black, White, Green and US-only Violet Olivia edition. Separately sold accessory-cover colours are not earbud finishes.6Maker product pagesony.jp/headphone/products/LinkBuds_FitRead 5 October 2026Japanese current product lists base finishes including later Pink. Original US maker release separately proves US Violet Olivia edition.

Black, Silver, Champagne Gold, Blue1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Spec table colour columns translated from Chinese: champagne gold (-N), blue (-A), black (-K) and silver (-S).

Segment

Music2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026

Music1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Technics premium music earphones. The catalog presents them for music listening.

Design

0 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-ear2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026

In-ear4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026Nozzles couple to bespoke silicone ear tips that seal in the ear canal.

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

Stemless2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026

Stemless4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026Reviewer describes rectangular nozzles and a circular back housing with no stalk.

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

Either bud3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Either bud1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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.

ASony LinkBuds Fit

Type	Diameter (mm)
Dynamic	8.4

Source8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact LinkBuds Fit section explicitly 8.4 mm Dynamic DriverX, not borrowed merely because the page mentions WF1000XM5. Existing dynamic technology retained, no guessed dome/edge material or count.13Maker product pagesony.jp/headphone/products/LinkBuds_Fit/spec.htmlRead 8 October 2026Exact model specification lists 8.4 mm driver unit. Per-bud transducer count is not explicitly stated and is not inferred.

BTechnics EAH-AZ100

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

Source1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 202610 mm driver in the spec table. Aluminium diaphragm with magnetic fluid driver.

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

Dynamic8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact named Dynamic Driver X 8.4 mm. Diaphragm combines different dome/edge materials, whose chemical identities are not published.

Dynamic1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

8.4mm=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.

Not available

1=CalculatedFrom Drivers per bud

Diaphragm material

Not available

Free-edge aluminium diaphragm1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

Not available

Min20 HzMax40 kHz1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 202620 Hz to 40 kHz, with LDAC at 96 kHz and 990 kbps.

Impedance

Not available

Not available

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

Not available

Not available

Sensitivity reference

Not available

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.

96kHz13Maker product pagesony.jp/headphone/products/LinkBuds_Fit/spec.htmlRead 8 October 2026Exact model A2DP transmission specification explicitly LDAC 96 kHz sampling at 990 kbps. Highest documented supported source condition. 20 Hz to 40 kHz is A2DP transmission bandwidth, not stored as acoustic response.

96kHz1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026The frequency response row states LDAC 96 kHz / 990 kbps.

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.

Not available

Not available

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

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026

Not available

Onboard EQ

Not available

Not available

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

59Reviewwhathifi.com/reviews/sony-linkbuds-fitRead 5 October 2026Exact review Features states five custom EQ bands. App/firmware version unknown. CLEAR BASS separately controlled.

Not available

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

1 of 2 differ

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

360 Reality Audio8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Compatible 360 Reality Audio streaming service, content and Sound Connect ear-shape analysis required. DSEE 96 kHz/24 bit upscaling is not accepted input resolution and is omitted from max digital input fields.

Dolby Atmos1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

Yes9Reviewwhathifi.com/reviews/sony-linkbuds-fitRead 5 October 2026Exact review Features explicitly supports head tracking. Compatible phone/content/app required, without claiming universal iOS tracking.

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

Noise cancelling

3 of 11 differ

Active noise cancelling

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

Not available

Hybrid1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Listed as all-adaptive digital hybrid noise cancelling.

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.

Not available

Not available

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

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Auto NC Optimizer explicitly detects wearing fit and environment and continuously optimizes cancellation. This is separate from activity-based switching.

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Adaptive ANC adjusts to ambient noise in real time.

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

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 20268Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

Adjustable transparency

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Pages 100-101 and app page 124 document changing ambient capture and Auto Ambient Sound sensitivity.8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Manual page 101 auto-adjusts ambient capture in ambient mode. This does not establish an ANC/transparency blend, so adaptive_audio_mode omitted.

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026The app can adjust how much outside sound is let in.

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

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Speak-to-Chat automatically pauses/mutes music when wearer speaks. Does not imply a medical hearing feature.

No7Reviewwhathifi.com/reviews/technics-eah-az100Read 13 October 2026The AZ100 has no speech-detecting feature.

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

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Physical wind reduction structure around mic. No selectable wind-processing mode assumed.

Not available

Measured

4 of 23 differ

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

Lab response has emphasized bass, a dip in low mids and uneven highs against the reviewer preference curve.11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact lab commentary. No graph extraction, ratings or MOS converted into dB.12Measurementsoundguys.com/how-we-testRead 5 October 2026Bruel & Kjaer 5128 fixture, SoundCheck and source preference curve.

Not available

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.

Not available

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.

Not available

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

Standardized recordings show problems with street noise and reverberation, while wind was handled better.11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact recorded ideal/office/street/wind/reverberant speech samples. No numerical capsule count inferred.12Measurementsoundguys.com/how-we-testRead 5 October 2026Calibrated artificial mouth with simulated noise, wind and reverberation.

The mono MEMS microphone is good enough for calls. The reviewer says it does not do well in the presence of noise, so results are workable for the office.4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026Mono MEMS microphone. Demo recordings in ideal, office, street, windy and reverberant conditions. The reviewer says the microphone does not do well in the presence of noise.

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.

ASony LinkBuds Fit

Hours (h)
6.77

Source11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Own standardized rundown 6 h 46 min (existing row retained). Exact review unit WFLS910NB.UC, firmware 1.2.0 and Sound Connect 11.0.2. Runtime paragraph does not specify ANC, codec or exact host, so no flags inferred from its iPhone/computer discussion. LC3 extension is explicitly untested and omitted.12Measurementsoundguys.com/how-we-testRead 5 October 2026Standardized continuous music peaks 75 dB SPL. This does not establish an unstated ANC/codec for a particular sample.

BTechnics EAH-AZ100

ANC	Codec	Hours (h)
Yes	SBC	10.67

Source4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 202610 hours 40 minutes with real music peaking at 75 dBSPL, SBC and ANC on. Stored as 10.67 hours.

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

6.77h=CalculatedFrom Battery life (measured)

10.67h=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

2 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.

Not available

67Reviewwhathifi.com/reviews/technics-eah-az100Read 13 October 2026Three microphones in each earbud for noise cancelling and call quality.

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.

Not available

67Reviewwhathifi.com/reviews/technics-eah-az100Read 13 October 2026Three microphones in each earbud, six in total.

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

AI7Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_4.htmlRead 5 October 2026Exact model maker call paragraph explicitly AI-trained separation of wearer voice and environmental noise. Published physical voice/total capsule counts not found. Internal microphone is expressly used for calls, so exterior diagram alone is incomplete.

AI1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Voice Focus AI noise reduction for calls.

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

Not available

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.

Not available

Not available

SidetoneiHear your own voice in calls

Not available

Not available

Connectivity

6 of 18 differ

Chip

Sony Integrated Processor V25Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Exact product launch explicitly names Integrated Processor V2 in this model, not inferred from sibling hardware.

Not available

Connections

Bluetooth3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Bluetooth1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

Bluetooth

5.31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Original exact manual printed pages 153-154 explicitly publish Bluetooth 5.3, named codecs and profiles.

5.31Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

Bluetooth codecs

SBC, AAC, LDAC, LC31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026LC3 needs compatible LE Audio Android hardware and app setup. Fit LDAC uses Classic Audio. No Auracast inferred from LC3 or Bluetooth 5.3.3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

SBC, AAC, LDAC, LC31Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 20262Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026

Bluetooth profiles

A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

A2DP, AVRCP, HSP, HFP, TMAP, PBP1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 20262Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026A2DP, AVRCP, HSP, HFP, TMAP and PBP.

LE Audio

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

Auracast

Not available

Not available

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

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Two concurrent sources in Classic Audio, one playing stream. App list marks multipoint unavailable during LE Audio. No simultaneous LC3 multipoint claim.

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

23Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

31Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Up to 3 devices connected at once. LDAC playback works with 2 devices only.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 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.

83Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

101Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Multi-pairing for up to 10 devices.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 October 2026

Automatic switching between own devicesiThrough the maker's account

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Printed page 85 explicitly Google audio switch on compatible Android 8+ devices, using Fast Pair. Separate from Sony Auto Switch to LinkBuds Speaker.

Not available

Fast pairing

Google Fast Pair, Microsoft Swift Pair3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Android Google audio switch chapter explicitly requires Google Fast Pair. Windows 10/11 chapters explicitly document Microsoft Swift Pair.

Google Fast Pair8Press articlestereonet.com/news/technics-launches-new-eah-az100-tws-with-proprietary-driversRead 13 October 2026Supports Google Fast Pair.

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual explicitly approximate line-of-sight 10 m. Obstacles, interference, antenna, reception and software conditions affect actual range.

10m1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

None of 3 known

Low latency mode

Not available

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

3 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, Windows, macOS3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Not available

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.

ASony LinkBuds Fit

Platform	Connection	Microphone works
Android	Bluetooth	Yes
iOS	Bluetooth	Yes
Windows	Bluetooth	Yes
macOS	Bluetooth	Yes

Source3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact Android/iPhone/Windows/Mac pairing chapters and computer calls chapter. Classic phone/desktop calls need compatible HFP/HSP app settings. LE Audio availability is separately restricted.

BTechnics EAH-AZ100

Not available

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

ASony LinkBuds Fit

Feature	Needs
LE Audio / LC3	Compatible Android smartphone and Sound Connect LE Audio setup. Classic-only multipoint, Quick Access and some voice-assistant functions become unavailable.
Google audio switch	Compatible Android 8 or later devices connected through Google Fast Pair.
Head tracking	Android 13+ head-tracking-compatible phone. 360 Reality Audio head tracking also requires certified phone and compatible 360 content. Amazon Music is excluded. Android multichannel head tracking depends on supported app/content. Xperia 1 V multichannel playback is limited to YouTube as stated by maker.
LDAC high-resolution playback	LDAC-compatible source and Sony Sound Connect setup. Maker specifies 96 kHz sampling at 990 kbps for published A2DP bandwidth. High-resolution streaming also requires Android 10+ compatible player. This is not lossless playback or an acoustic frequency-response claim.
DSEE Extreme	Enable in Sony Sound Connect. Maker describes upsampling compressed CD/MP3 material up to 96 kHz/24-bit with SBC/AAC/LDAC. This does not establish incoming source bit depth, so no max_bit_depth_bits inferred.

Source3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact manual Classic/LE Audio and Google audio switch conditions. Spatial phone/content requirements independently retained in the source describing tracking.8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact head-tracking requirements: Android 13+, compatible phone/content/app, Amazon Music excluded for 360 Reality Audio. DSEE Extreme 96/24 is upsampling and not incoming source capability.

BTechnics EAH-AZ100

Feature	Needs
Multipoint with LDAC	LDAC playback is available with 2 devices only.
Wireless high-resolution playback	Use a playback device with the high-resolution wireless logo and set the Bluetooth sound quality setting to sound quality priority mode, LDAC 990 kbps.

Source1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

Official licence

Not available

Not available

Battery and charging

12 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

85mAh2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Earphones 3.7 V lithium polymer 85 mAh.

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.

No14Owner's manualbhphotovideo.com/lit_files/1165249.pdfRead 8 October 2026Original reference guide page 1 explicitly non-replaceable button/coin cells and identifies Z35FH. This supports the earbud coin-cell flag only. The charging case battery replacement flag remains unknown, not inferred from recycling instructions.

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.

ASony LinkBuds Fit

Mode	Codec	Includes case recharges	Hours (h)
ANC on	LDAC	No	3.5
Transparency	LDAC	No	3.5
ANC off	LDAC	No	4.5
ANC on	AAC	No	5.5
Transparency	AAC	No	5.5
ANC off	AAC	No	8
ANC on	SBC	No	5
Transparency	SBC	No	5
ANC off	SBC	No	7.5
ANC on	LC3	No	4.5
Transparency	LC3	No	4.5
ANC off	LC3	No	7.5
Call	Not available	No	4
ANC on	Not available	Yes	21

Source4Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact page 28 codec/mode runtime table. EQ, DSEE Extreme, Speak-to-Chat, voice wake, Service Link and Auto Ambient Sound shorten runtime. Call 4h is ANC on/off. Transparency-call 3.5 h does not fit call enum and is omitted.5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Body explicitly 21 h including case. Footnote 9 specifies noise cancellation and Bluetooth. Recharge-count marketing is not multiplied into a different total. Codec unstated.

BTechnics EAH-AZ100

Mode	Codec	Includes case recharges	Hours (h)
ANC on	AAC	No	10
ANC off	AAC	No	12
ANC on	AAC	Yes	28
ANC off	AAC	Yes	29
ANC on	SBC	No	8
ANC on	SBC	Yes	24
ANC on	LDAC	No	7
ANC off	LDAC	No	8
ANC on	LDAC	Yes	18
ANC off	LDAC	Yes	19
ANC on	LC3	No	5
ANC on	LC3	Yes	15

Source1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Maker figures for AAC and LDAC, with NC on and NC off. Earphones about 10 hours (NC on) and 12 hours (NC off) with AAC. With the charging case about 28 hours and 29 hours. LDAC about 7 and 8 hours, 18 and 19 hours with the case. The SBC and LC3 figures come from the owner's manual, measured with noise cancelling on.2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Specifications page, Operating time measured with Noise cancelling set to ON. Earphones about 10.0 hours AAC, 8.0 hours SBC, 7.0 hours LDAC and 5.0 hours LC3. With the charging cradle about 28 hours AAC, 24 hours SBC, 18 hours LDAC and 15 hours LC3.

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.

8h=CalculatedFrom Claimed battery life

12h=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.

5.5h=CalculatedFrom Claimed battery life

10h=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.

8h=CalculatedFrom Claimed battery life

12h=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.

21h=CalculatedFrom Claimed battery life

29h=CalculatedFrom Claimed battery life

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

21h=CalculatedFrom Claimed battery life

28h=CalculatedFrom Claimed battery life

Talk time (claimed)

4h=CalculatedFrom Claimed battery life

Not available

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.

120min3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Approximate earbuds-only full charge in case. Case-only charging is separately published.

120min1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Earphones about 2.0 hours at 25 degrees C.2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Charging time at 25 degrees C is the time to charge the batteries from empty to full. Earphones about 2.0 hours.

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

At 25 degrees C, the earphones with the charging cradle take about 3 hours by USB and about 4 hours on a Qi charger. The cradle alone takes about 2.5 hours by USB and about 3.5 hours on a Qi charger.1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 20262Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Earphones with the cradle by USB about 3.0 hours. The Taiwan catalog adds the Qi charging times.

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

5min3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

15min1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 202615 minutes of charging, AAC, earphones.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 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.

1h3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Maker approximately one hour of earbud music after five-minute charging. Codec/volume unspecified for this quick-charge claim. Excludes case-inclusive runtime.

1.5h1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026About 90 minutes of playback with NC on, stored as 1.5 hours.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 October 2026A 15 minute charge provides up to 90 minutes of playback.

Charging case

5 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.

Not available

550mAh2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Charging cradle 3.7 V lithium polymer 550 mAh.

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-C3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

USB-C1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 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.

180min3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

150min1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Charging cradle by USB about 2.5 hours at 25 degrees C.2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Charging cradle by USB about 2.5 hours.

Wireless charging

No11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact charging paragraph explicitly USB-only and no wireless charging. Fit FAQ footer says Yes, contradicting its body. Primary maker table/manual only publish USB charging. Detailed tested body takes precedence over generic footer.

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

Not available

Qi1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 20262Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Qi standard wireless chargers are supported. Not every Qi charger is guaranteed to work. Chargers that are not Qi certified or have magnetic attachments are not supported.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 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.

No11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact-model review feature assessment explicitly No transmitter in case. Review unit WFLS910NB.UC, firmware 1.2.0 and Sound Connect 11.0.2. This negative capability is not inferred from a port photo.

Not available

Controls

3 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.

Touch, Head gestures, Voice commands3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Touch4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026

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

Touch3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Touch4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026

Gestures

Wide Area Tap on earbud or nearby skin, Head nod to accept a call, Head shake to reject a call3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Single tap: play or pause (either bud), Left double tap: volume down, Right double tap: next track, Left triple tap: volume up, Right triple tap: previous track, Left long press: voice assistant, Right long press: ANC mode toggle4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026Default touch map. Customisable in the app.

Remappable controls

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026App reassigns left/right function groups, voice functions and Quick Access. No arbitrary individual-gesture remapping inferred.

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Touch controls and the equalizer are customised in the Technics Audio Connect app.

Voice assistant

Amazon Alexa, Google app, Siri3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Separate Amazon Alexa, Android Google app and iPhone Siri chapters. Cloud/device/app/region restrictions apply. Some voice routes and Quick Access are unavailable under LE Audio. On-device playback Voice Control is represented in control_types, not invented as a cloud assistant.

Not available

Sensors and health

1 of 9 differ

In-ear detection

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Parts diagrams name built-in IR sensors. App enables automatic pause/resume and power-off when removed.

Yes1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Wear sensor pauses playback when an earphone is removed.4Measurementsoundguys.com/technics-eah-az100-review-135211Read 13 October 2026Light sensors near the nozzle report whether the earbuds are worn.

Sensors

Infrared wear sensors3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Not available

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.

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Not available

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

3 of 7 differ

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

SS, S, M, L3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Original manual page 9 exact standard box includes SS/S/M/L tips, two of each. M tips are fitted at purchase.

XS, S, M, ML, L1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Spec table: XS, S, M, ML and L, with M pre-installed.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 October 2026Earpieces in XS, S, M, ML and L.

Ear tip materials

Silicone11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact review use section explicitly says the tips are made from a single piece of silicone.

Silicone1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

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

Fins3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Not available

Ear tip fit test

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual page 10 explicitly measures ear-tip air-tightness to find optimal tips, distinct from general wearing-condition check.

No7Reviewwhathifi.com/reviews/technics-eah-az100Read 13 October 2026No ear tip fit test in the app.

Dust and water rating, buds

IPX44Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact Fit manual publishes IPX4 splash resistance for earbuds only. Sound conduit, air holes and microphone holes excluded. Charging case explicitly not water resistant.

IPX41Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026IPX4 equivalent, earphones only.3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 October 2026

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

3 of 6 differ

Companion app

Sony | Sound Connect3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Technics Audio Connect1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

App platforms

Android, iOS3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Android, iOS6Reviewtechradar.com/audio/earbuds-airpods/technics-eah-az100-reviewRead 13 October 2026The Technics Audio control app is free for iOS and Android.

User firmware updates

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Not available

Finding network

Not available

Last location in the app1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026The app shows the last connected location of the earphones on a map.

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

4 of 4 differ

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

4.9g(0.2 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026Approximate one-earbud mass, including M ear tip and attached fitting supporter.3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual explicitly approximate one-earbud weight with M tip and fitting supporter.

5.9g(0.2 oz)1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026About 5.9 g for one earphone. Left and right are the same.2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Earphone about 5.9 g, one side only.

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

Not available

Width21Height26Depth25mm(0.8 × 1 × 1 in)1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026About 21 x 26 x 25 mm, listed as width x height x depth, with the M ear tip fitted.

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

41g(1.4 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026Exact charging-case mass, separate from earbuds.3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual separately publishes charging-case weight, excluding earbud mass.

42g(1.5 oz)1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Charging case about 42 g.2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Charging cradle about 42 g.

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

Not available

Width69Height36Depth27mm(2.7 × 1.4 × 1.1 in)1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026About 69 x 36 x 27 mm, listed as width x height x depth.

Certifications

0 of 3 differ

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

Hi-Res Audio Wireless8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact model describes wireless high-resolution playback through LDAC and names its Hi-Res Audio Wireless certification. 990 kbps LDAC high-res content condition, not a lossless claim.

Hi-Res Audio Wireless1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Hi-Res Audio Wireless logo footnote.2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026Complies with the High Resolution Audio standard of the Japan Audio Association. Wireless high-resolution quality needs LDAC 990 kbps.

Communication certifications

Not available

Not available

FCC IDs

AK8YY297514Owner's manualbhphotovideo.com/lit_files/1165249.pdfRead 8 October 2026Original Sony Reference Guide 5-058-500-11(1), ©2024 Sony, exact LinkBuds Fit/YY2975. Page 1 headset regulatory block explicitly FCC ID AK8YY2975. Public B&H mirror of original two-page maker PDF.

ACJ-EAH-AZ100R, ACJ-EAH-AZ100L2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 October 2026FCC ID ACJ-EAH-AZ100R and ACJ-EAH-AZ100L.

Other certifications

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In the box

2 of 2 differ

In the box

Sony LinkBuds Fit earbuds with Air Fitting Supporters, Charging case, USB-A to USB-C cable, Documents, Soft fitting earbud tips (SS, S, M, L)3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Complete standard box list. Factory Air Fitting Supporters are attached. Separately sold covers/supporter colours and Olivia edition promotions excluded.

USB charging cable, Ear tips XS, S, M, ML, L (M pre-installed)1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026Accessories row: USB cable and ear tips.

Cables included

ASony LinkBuds Fit

Type	Count
USB-A to USB-C charging cable	1

Source3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

BTechnics EAH-AZ100

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

Source1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026USB charging cable about 0.2 m, USB Type-C to USB Type-C.

Links

Not compared

Product page

www.sony.co.uk/headphones/products/linkbuds-fit2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026Exact model maker product page. Fit is sealed-tip design.

help.na.panasonic.com/answers/what-features-make-eah-az100-unique3Maker product pagehelp.na.panasonic.com/answers/what-features-make-eah-az100-uniqueRead 13 October 2026

Spec sheet

www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specifications1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026Full exact maker support technical table. Bluetooth transmission bandwidth is not acoustic frequency response. Unlabelled case dimensions are not assigned to width/height/depth. Published driver diameter is 8.4 mm, with dynamic technology separately documented. Physical quantity per earbud remains unproved. The driver row preserves the proved size/type without asserting a quantity, so total driver count remains unknown.

pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdf1Maker spec sheet (PDF)pstw.panasonic.com.tw/catalog/files/1_consumer/Technics/202511_Panasonic_Technics.pdfRead 13 October 2026

Manual

helpguide.sony.net/mdr/2975/v1/en/print.pdf3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Original exact English guide 154 pages. Box page 9, runtime page 28, specifications pages 153-154, app pages 124-125 inspected.

eww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdf2Owner's manualeww.pavc.panasonic.co.jp/avcacc/technics/eah_az100/eah_az100_pnqw6265xa_si_en_cf_sp_ge_etc_s.pdfRead 13 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

None of 1 known

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.

Not available

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