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Sennheiser MOMENTUM 4 Wireless vs soundcore Space One

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Product A: Sennheiser

MOMENTUM 4 Wireless

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B

Product B: soundcore

Space One

76 of 161 known

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Only differences

ASennheiser MOMENTUM 4 Wireless

Bsoundcore Space One

General

6 of 8 differ

Series

MOMENTUM2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026

Space6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026Introduced as an addition to the Space Series, successor to the Life Q30.

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

M4AEBT, 800107, 800074, 700383, 800073, 509267, 800109, 8001081Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 20263Maker product pageus.sennheiser-hearing.com/products/momentum-4-wireless.jsRead 5 October 2026Commercial SKU identifiers from public current maker data joined to exact colors/GTIN rows. Regulatory model M4AEBT independently established by manual cover.4Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Exact regulatory model M4AEBT is printed on the current manual cover. Commercial SKU identifiers sit in the exact sold-configuration rows.

A3035, A3035G11, A3035G21, A3035Z116Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026Identified by model no. A3035. MFR number A3035Z11.7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Manufacturer code A3035G11 for the black model. The cream page lists A3035G21.

GTIN / EAN

810091270431, 810091274095, 810091272626, 810091274088, 810091270455, 810091274323, 8100912743163Maker product pageus.sennheiser-hearing.com/products/momentum-4-wireless.jsRead 5 October 2026Each barcode joined to exact SKU and color in variants. Black current SKU 800107 differs from stale product specification Black 509266. Barcode 810091270431 matches current Black. Current SKU used without claiming another hardware generation.

Not available

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

9 August 20226Press releasecdn.uc.assets.prezly.com/ba6f235a-b675-4ed2-bacf-090e7ac559bd/-/inline/no/press-releasesennheiser-momentum-4-wireless.pdfRead 5 October 2026Exact manufacturer US launch PDF, dated August 9, 2022. Four pages opened.

Not available

Status

Available2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026

Available2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026The page sells the headphones at $99.99.

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 5 Wireless10Reviewsoundguys.com/sennheiser-momentum-5-wireless-131570Read 23 October 2026SoundGuys's launch article calls the MOMENTUM 4 the previous model of the MOMENTUM 5 Wireless.

soundcore Space 211Reviewtomsguide.com/audio/headphones/ive-been-trying-soundcores-space-2-headphones-at-mwc-2026-and-i-dont-want-to-take-them-offRead 23 October 2026Tom's Guide calls the Space 2 the follow-up to the Space One and compares it with its predecessor's battery life.12Press articlethe-gadgeteer.com/2026/03/09/when-your-budget-headphones-outlive-your-vacationRead 23 October 2026The Gadgeteer says the Space 2 replaces the Space One in Anker's lineup.

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

$349.956Press releasecdn.uc.assets.prezly.com/ba6f235a-b675-4ed2-bacf-090e7ac559bd/-/inline/no/press-releasesennheiser-momentum-4-wireless.pdfRead 5 October 2026Page 4 MSRP 349.95 USD, 459.95 CAD. Only USD retained, before applicable local sales tax. Planned sale August 23 is separately corroborated by retrospective actual release source. Euro launch 349.90 has unproven VAT scope and is omitted.

$99.994Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Spec box: Price $99.99 USD. The review header gives MSRP $99.99.

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

€99.995Reviewtrustedreviews.com/reviews/soundcore-space-oneRead 11 October 2026Full specs list EU RRP EUR 99.99, UK RRP GBP 89.99 and USA RRP USD 99.99. Tax treatment is not stated.

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

US6Press releasecdn.uc.assets.prezly.com/ba6f235a-b675-4ed2-bacf-090e7ac559bd/-/inline/no/press-releasesennheiser-momentum-4-wireless.pdfRead 5 October 2026

Not available

ColoursiThe maker's own colour names

Black, Brown, Graphite, Teal, White, Denim, Copper3Maker product pageus.sennheiser-hearing.com/products/momentum-4-wireless.jsRead 5 October 2026Public official product data currently lists seven sold color configurations. Related M5 colors and accessories excluded.

Jet Black, Sky Blue, Latte Cream2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Page says three colors. The color names Jet Black, Sky Blue and Latte Cream come from the SoundGuys and Trusted Reviews reviews and from the maker refurbished listings.4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Color options: Jet Black, Sky Blue and Latte Cream.5Reviewtrustedreviews.com/reviews/soundcore-space-oneRead 11 October 2026Finishes named sky blue, latte cream and jet black.

Segment

Music1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Music2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Maker markets it as active noise cancelling headphones for music with Hi-Res wireless audio.

Design

2 of 7 differ

Form factor

Over-ear1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Over-ear7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Type of ear cushions: Over-ear

Ear cup enclosureiClosed, open or semi-open acoustic enclosure. This does not describe how the headset folds.

Closed1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Closed7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Types of design: Closed

Wearing style

Headband1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Headband1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Wearing page: adjust the length of the headband for a comfortable fit.

FoldingiFlat means the ear cups rotate flat. Inward means the ear cups fold toward the headband.

Flat6Press releasecdn.uc.assets.prezly.com/ba6f235a-b675-4ed2-bacf-090e7ac559bd/-/inline/no/press-releasesennheiser-momentum-4-wireless.pdfRead 5 October 2026US manufacturer launch PDF Design section expressly fold-flat design. Current manual page 34 case diagram corroborates flat rotated earcups.

Inward9Reviewtechradar.com/audio/headphones/anker-soundcore-space-one-reviewRead 11 October 2026Folding design: both ear cups fold in. A small travel pouch is included.

Swivelling ear cupsiEar cups can rotate relative to the headband. Tilting alone does not count.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Current manual page 34 storage diagram and exact maker fold-flat claim show each cup rotated flat without an inward-folded headband. No separate folding hinge asserted.

Not available

RGB lighting

Not available

Not available

Lighting zonesiNumber of independently controllable lighting areas across both ear cups.

Not available

Not available

Drivers and sound

9 of 20 differ

Driver type

Dynamic1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Dynamic2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Maker text: 40mm dynamic drivers

Driver sizeiDiameter of the largest sound driver. Do not use the microphone capsule diameter.

42mm1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

40mm1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Driver size 40mm

Drivers per sideiNumber of sound-producing transducers in one side, excluding microphones.

Not available

Not available

Diaphragm material

Not available

Not available

Magnet

Not available

Not available

Frequency response (wired or passive)iPublished acoustic range for wired listening, or the maker’s single range when no mode is distinguished. Power state and test standard belong in the source note.

Min6 HzMax22 kHz1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 39 headphone range 6 Hz-22 kHz at -10 dB, not microphone or Bluetooth transmission bandwidth.

Min20 HzMax20 kHz1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Frequency response 20Hz - 20kHz. The manual gives no test conditions. Trusted Reviews prints a 20 to 40,000 Hz range in its spec box, which is not stored because the maker manual states the value.

Wireless audio transmission bandiFrequency range of audio transmitted over the wireless connection, not the acoustic response of the driver. Codec, sampling rate and bitrate conditions belong in the source note. When the maker gives a range per codec, the widest range is stored and its codec goes in the source note.

Not available

Not available

Impedance (passive when specified)iUse the headset-off value for a passive analog connection when the maker publishes both powered and passive values. Note the power state and test frequency.

60Ω2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026Exact specification gives active 470 ohms and passive 60 ohms. Passive value 60 retained by schema rule. Active 470 is not substituted.

16Ω1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Impedance 16 ohm. The manual does not name the power state.

Sensitivity (passive when specified)iUse the headset-off figure when both powered and passive values exist. The power or voltage reference, test distance and frequency belong in the source note.

106dB1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 39 gives 106 dB SPL at 1 kHz / 0 dBFS. This is not 1 mW or 1 V sensitivity, so sensitivity_reference omitted.

Not available

Sensitivity referenceiPublished power or voltage reference for sensitivity. Do not assume 1 mW when the source gives only a dB value.

Not available

Not available

THD (claimed)iPublished distortion figure or numerical upper bound. The source note states any less-than sign and test level.

0.3%1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 39 less than 0.3%, 1 kHz / 100 dB SPL. Stored 0.3 is the stated bound, not measured distortion.

Not available

Max input power

Not available

Not available

Max digital audio sample rateiHighest supported digital audio sample rate over a USB cable or wireless dongle. This is not the microphone rate or acoustic frequency response.

Not available

Not available

Max digital audio bit depthiHighest published digital playback bit depth over a USB cable or wireless dongle.

Not available

Not available

DAC

Not available

Not available

Personalised soundiA manufacturer-supported hearing test or ear scan creates a device sound profile tailored to the listener. Generic equalizer adjustments do not count.

Not available

Yes2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Customized EQ: Hear ID

Onboard EQiCustom playback EQ profiles stored in the headset and applied without the host app running. Note supported active connections. Receiver-only or software-only EQ does not count.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 31 explicitly says sound effects are stored in headphones and active without Smart Control on another Bluetooth device.

Not available

Custom EQ bandsiNumber of bands in the custom playback equalizer. Microphone EQ bands are excluded.

52Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026Current exact comparison column states 5-band EQ plus personalization. Original launch app had fewer bands, so current count is not asserted as launch configuration.

84Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026The Soundcore app has a custom EQ with eight bands.

EQ presets

Bass boost1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Not available

Volume limit

Not available

Not available

Spatial audio

None of 3 known

Spatial audio supportiNamed headset or host spatial-audio systems that the maker or reviewer explicitly supports. A platform feature may require compatible hardware, software or a separate licence.

Not available

Not available

Spatial audio licence includediA paid spatial-audio licence is bundled or embedded. Compatibility with a separately purchased app does not count.

Not available

Not available

Head tracking

Not available

Not available

Noise cancelling

3 of 10 differ

Active noise cancelling

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Noise cancellation page: NC button switches between noise cancellation and transparency mode.

ANC typeiFeedforward uses outside microphones. Feedback uses inside microphones. Hybrid uses both. Voice-call noise filtering is separate.

Hybrid1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Not available

ANC microphonesiTotal microphones used for active playback noise cancellation across both sides. Do not substitute the total physical or voice microphone count.

41Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 7 explicitly two outward and two inward ANC microphones, total 4. It does not imply 8 speech microphones.

Not available

Adaptive ANCiNoise cancellation automatically changes with the environment or fit. Manually choosing a level does not count.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 26 app Adaptive switch automatically adjusts reduction to noise conditions. Manual excludes Transparency Mode during calls.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Noise cancellation page: Adaptive Noise Cancelling adjusts the level automatically for various scenarios. Custom Noise Cancelling sets the level manually.

ANC levelsiNumber of adjustable cancellation strength steps. Off and transparency modes are excluded.

Not available

Not available

ANC attenuation (claimed)

Not available

Not available

Transparency mode

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Transparency page: switch to transparency mode with the NC button.

Adjustable transparency

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Transparency page: Custom Transparency Mode sets the level of transparency manually.2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 20265 levels of adjustable transparency

Conversation detectioniAudio pauses or lowers automatically when the wearer speaks. Voice assistant activation does not count.

Not available

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Easy Chat page: Easy Chat automatically lowers the volume of music and amplifies the voice of the person you talk to. It turns on automatically when you speak and off after 5 seconds without speaking (beta, enabled in the app).

Wind noise reduction

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 26 Off/Auto/Max wind-noise reduction settings. No numeric attenuation claim inferred.

Yes4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026The app Ambient Sound section has a wind noise reduction switch.

Measured

4 of 21 differ

Frequency response notesiMeasured by a reviewer, not claimed by the maker

The lab response has a small sub-bass boost and some emphasized highs against the SoundGuys headphone preference curve. The reviewer describes good overall agreement and clear speech detail.5Reviewsoundguys.com/sennheiser-momentum-4-wireless-review-2-86111Read 5 October 2026SoundGuys lab measurement and reviewer discussion, not the maker 6-22 kHz frequency range. No qualitative chart peak converted to dB.

Bass and treble are over-emphasized against the SoundGuys target.4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026The review lists over-emphasized bass and treble as a con. Measured against the SoundGuys house curve.

Bass amountiReviewer’s bass deviation from its stated target. Positive is more bass. Target and test method belong in the source note.

Not available

Not available

Treble amountiReviewer’s treble deviation from its stated target. Positive is more treble. Target and test method belong in the source note.

Not available

Not available

Deviation from targetiReviewer’s full-range error from its target curve. Do not substitute a regional bass or treble error.

Not available

Not available

Consistency between fittingsiReviewer’s standard deviation across repeated fittings. Test rig and fitting procedure belong in the source note.

Not available

Not available

Harmonic distortioniIndependently measured harmonic distortion, with test level and method in the source note.

Not available

Not available

Sound leakageiIndependently measured leakage at 30 cm. Playback level and method belong in the source note.

Not available

Not available

Measured noise isolationiIndependently measured attenuation. Positive values mean more noise reduction. ANC state, rig and frequency bands belong in the source note.

Not available

Not available

Noise isolation (measured, best)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

Mic quality notesiMeasured by a reviewer, not claimed by the maker

Recorded speech samples show usable voice quality. Background-noise rejection remains a limitation. Samples cover ideal, office, street, wind and reverberant conditions.5Reviewsoundguys.com/sennheiser-momentum-4-wireless-review-2-86111Read 5 October 2026Multiple tested units, latest stated firmware 2.13.35/app 4.9.1. The article does not date every speech recording or identify codec. These remain unknown.

Voices are clear in ideal conditions. Background noise is blocked well in the simulated street and wind conditions.4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Microphone demos in ideal, office, street, windy and reverberant conditions. The review says the three-microphone AI system blocks background noise and focuses on voices.

Mic low-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratioiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured latencyiEnd-to-end latency measured by a reviewer for a specific connection, platform and codec. Firmware, method and operating mode belong in the source note.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Measured battery lifeiReviewer’s continuous playback test. State the connection, ANC and lighting where known. Unknown settings stay omitted and are described in the source note.

ASennheiser MOMENTUM 4 Wireless

Connection	ANC	Hours (h)
Bluetooth	Yes	56.35

Source5Reviewsoundguys.com/sennheiser-momentum-4-wireless-review-2-86111Read 5 October 2026Continuous music peaking 75 dB SPL, ANC on, 56 h 21 min. Codec and test-specific firmware not published. Article reviewed multiple units and names latest firmware 2.13.35/app 4.9.1, but it does not assign that firmware to this battery sample. No latest-firmware assumption.

Bsoundcore Space One

Connection	ANC	Hours (h)
Bluetooth	Yes	42.95

Source4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Battery test result: 42 hours 57 minutes with ANC on, stored as 42.95 hours. Test volume and codec are not stated in the review text.

Battery life (measured, max)iMeasured by a reviewer, not claimed by the maker

56.35h=CalculatedFrom Measured battery life

42.95h=CalculatedFrom Measured battery life

Clamping forceiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iIndependently weighed headset. A review that repeats the maker’s number does not qualify. Cable and microphone inclusion belong in the source note.

Not available

Not available

Microphone

9 of 16 differ

MicrophoneiMain microphone used for speech. Secondary internal microphones may be described in the source note.

Built-in1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Built-in2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Calls: 3 mics with AI. Built into the ear cups. No boom microphone.

Microphone element

MEMS1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Not available

Microphone pickup patterniUse the maker’s exact named pattern. Unidirectional does not establish whether the capsule is cardioid, supercardioid or hypercardioid.

Omnidirectional1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Not available

Voice microphonesiTotal microphones used for voice pickup or beamforming across both sides. ANC-only microphones are excluded.

41Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Pages 6/39 explicitly four speech microphones as two 2-mic beamforming arrays. ANC-only mics are separately counted.

32Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Calls: 3 mics with AI

Total microphonesiEvery physical microphone across the headset, including call, ANC and calibration microphones. Shared microphones count once. Excludes microphones in charging cases or receivers, and vibration sensors. Use an explicitly published physical total, never a sum of overlapping role counts.

Not available

Not available

Mic frequency responseiAcoustic microphone response, not its digital sampling rate. Connection-specific ranges belong in the source note.

Min80Max8,000Hz1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Latest manual page 39 gives 80 Hz-8 kHz at -3 dB. Current product page says 50 Hz-10 kHz, so newer exact manual is preferred and conflict recorded.

Not available

Mic sensitivityiPublished microphone sensitivity. Reference such as dBV/Pa or dBFS, frequency and distance belong in the source note.

Not available

Not available

Mic signal-to-noiseiPublished microphone signal-to-noise ratio. Minimum or typical conditions belong in the source note.

Not available

Not available

Mic sample rateiExplicitly published digital microphone capture or speech sampling rate. State the audio route in the source note, or say it is unpublished. Internal capture does not prove the effective rate on every connection. Acoustic bandwidth, playback rate and generic microphone-chip capability do not qualify.

Not available

Not available

Mic noise reductioniProcessing that removes noise from transmitted speech. Playback ANC and a directional microphone alone do not count.

DSP2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026

AI2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Calls: 3 mics with AI. Stored as AI noise reduction.

Flip to mute

Not available

Not available

Mute button

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 28 multifunction button toggles call microphone mute. Page 30 also explains sensor mute after taking off.

Not available

Mute indicatoriPublished indication of microphone mute. mechanical_marker is a visible physical marker showing the microphone's mute-switch position. LED options require an electronic light. The in-line controller option is for a mute light on a cable remote.

Voice prompt1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 28 explicitly audible Mute on/Mute off voice prompts.

Not available

Sidetone

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Not available

Adjustable sidetone

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 29 Sidetone enabled/disabled and intensity slider.

Not available

Foam microphone windscreeniA foam cover for the voice microphone. An internal metal mesh pop filter does not count.

Not available

Not available

Connectivity

10 of 20 differ

Audio connectionsiConnections that carry playback audio. Charging or firmware USB alone does not count as USB audio.

Analog, USB, Bluetooth1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Pages 26/32/33 explicitly Bluetooth, analog and USB playback. USB-C port carries audio, microphone and power.

Bluetooth, Analog1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Wired listening page: 3.5mm AUX cable. Bluetooth for wireless. The USB-C port is for charging.

Analog source plugsiAnalog plug(s) supplied for the source device, including adapters. The headset-side jack is listed separately.

3.5 mm TRS1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026SoundGuys exact TRS cable corroborates manual 3.5 mm source plug and 2.5 mm headset plug.

3.5 mm TRS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Wired listening page: 3.5mm AUX cable. The maker support FAQ says the AUX cable has no microphone, so it is a stereo (TRS) cable.

Cable connector on headsetiConnection used by the playback cable at the headset. A fixed cable is not replaceable through a headset jack.

2.5 mm1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

3.5 mm6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026The box has a 48-inch audio cable with straight 3.5 mm plugs on both ends. The maker support FAQ describes the AUX-in connection.

Longest included cableiLength of the longest supplied cable, including charging and dongle cables. Individual cable lengths are listed in Cables included.

1.2m8Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 8 October 2026Package contents printed page 5: both supplied USB-C to USB-A cable and 2.5 mm to 3.5 mm analog cable are approximately 1.2 m. Longest supplied cable, not an optional longer accessory.

1.2192m6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 202648 inch audio cable converted exactly. SoundGuys lists 1.3 m in its spec box.

Headset USB plug or portiUSB plug or port on the headset or its included wired audio adapter. A charging-only USB port can appear here.

USB-C1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

USB-C1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Charging page: Use a certified USB-C charging cable and charger. The USB-C port is for charging only.

Audio over USB-C cableiPlayback through a USB-C cable or included wired USB-C audio adapter. A charging-only USB-C port does not count.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

No4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Cons list: No audio over USB.

Passive wired listeningiAnalog playback works with the headset powered off or its battery empty. An active analog converter that needs headset power does not count.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 32 explicitly analog listening when the headphone battery is empty. Music/call/assistant controls disabled, ANC requires charged battery.

Yes2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Page FAQ: if the headphones are turned off while connected by the AUX-in cable, the classic EQ is not active and sound quality is lower. Audio still plays with the power off.

Wireless receiveriDedicated wireless audio receiver or dongle. A wired USB sound card does not count.

Not available

None7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Included by default list has no wireless receiver.

Wireless receiver connectoriPhysical USB connector on the receiver. Supplied extension cables and adapters are explained in the source note. Both means two native connector types.

Not available

Not available

Wireless range (claimed)iMaker’s advertised wireless range. Connection and indoor or outdoor conditions belong in the source note. Measured distance is not stored here.

Not available

15m1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Bluetooth range 15m / 49ft. The Amazon listing text copied by iFixit says 10 m. The maker manual is stored.

Bluetooth

5.21Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

5.31Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Bluetooth version 5.3

Bluetooth codecsiNamed Bluetooth audio codecs supported by this exact model. Host, firmware and operating-mode restrictions belong in the source note.

SBC, AAC, aptX, aptX Adaptive1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Printed page 39 lists aptX Adaptive, AAC and SBC. Current August 2026 maker specification separately confirms classic aptX, included from that exact table. Bluetooth Low Energy device name does not prove LE Audio.9Maker product pagesupport.sennheiser-hearing.com/hc/en-at/articles/37791406604189-MOMENTUM-4-Wireless-SpecificationsRead 8 October 2026Current exact MOMENTUM 4 table updated August 8, 2026 expressly lists SBC, AAC, aptX and aptX Adaptive. It identifies the Black 509266 and other exact finish SKUs. Older manual omits classic aptX. Current explicit maker specification supports it without implying aptX HD, aptX Lossless or a firmware version.

SBC, AAC, LDAC1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026LDAC page: LDAC is enabled in the Soundcore app and needs Android 8.0 or later. SBC and AAC come from the SoundGuys review and the Trusted Reviews FAQ.4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Bluetooth 5.3 with LDAC, plus SBC and AAC for other devices.5Reviewtrustedreviews.com/reviews/soundcore-space-oneRead 11 October 2026FAQ: Bluetooth 5.3 with SBC, AAC and LDAC streaming codecs.6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026Bluetooth 5.3 with LDAC, SBC and AAC decoding.

LE AudioiLE Audio playback support. Bluetooth Low Energy for app control alone does not count.

Not available

Not available

AuracastiAuracast broadcast audio support. Required phone, firmware and app conditions belong in the source note.

Not available

Not available

Bluetooth multipointiCan remain connected to multiple Bluetooth source devices at once. Mixing Bluetooth with a proprietary dongle is a separate field. A maker's dual connection to two Bluetooth devices at once counts.

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Dual connections page: the headphones can connect with two devices at the same time.2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Multipoint Connection: yes

Multipoint devicesiNumber of Bluetooth source devices connected at once, not the number remembered for later pairing.

21Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

21Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Dual connections page: two devices at the same time.

Paired devices remembered

68Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 8 October 2026Bluetooth connection section printed page 16: six saved profiles, two active connections. A seventh pairing overwrites the least-used stored profile. One audio source plays at a time.

Not available

Mixes 2.4 GHz and Bluetooth audioiPlays both wireless audio streams at the same time. Automatic switching or Bluetooth standby does not count.

Not available

Not available

Fast pairing

Not available

Google Fast Pair1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Powering on and pairing page: Google Fast Pairing for Android 6.0 and above.

Base station

Not available

Not available

Latency

None of 2 known

Low latency modeiA selectable mode intended to reduce audio delay. A low-latency connection without a distinct mode does not count.

Not available

Not available

Claimed latencyiMaker’s claimed delay for the stated connection and mode. Minimum claims and host restrictions belong in the source note.

Not available

Not available

Compatibility

2 of 3 differ

Compatible platformsiPlatforms with a documented audio path. This does not imply every connection or microphone function works. Platform editions must be checked individually.

Windows, macOS, Android, iOS1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Android, iOS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Pairing page covers Android 6.0 or later with Google Fast Pair and iOS. App page shows Google Play and App Store.4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Used with an iPhone throughout the test period.

Connection per platformiOnly explicitly documented playback paths for the exact model. Microphone support is separate. Leave unknown microphone support omitted. An Xbox and a PlayStation edition of one headset can connect differently, so it is per variant.

ASennheiser MOMENTUM 4 Wireless

Platform	Connection	Microphone works
Windows	USB	Yes
macOS	USB	Yes
Windows	Bluetooth	Yes
macOS	Bluetooth	Yes
iOS	Bluetooth	Not available
Android	Bluetooth	Not available

Source1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 33 USB playback and microphone recording for PC/Mac/mobile device. Page 27 explicitly PC/Mac Bluetooth calling. Page 29 mobile assistant Siri/Google Assistant plus maker iPhone battery test establishes iOS/Android Bluetooth playback. Unknown mobile call path remains omitted.

Bsoundcore Space One

Not available

Official licence

Not available

Not available

Battery and charging

7 of 13 differ

Battery capacityiRated capacity of one headset battery. Do not use case, receiver or total multi-battery capacity.

700mAh1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 39 one built-in 3.7 V, 700 mAh, 2.59 Wh pack. Capacity and energy agree. No headset Wh field is available.

580mAh1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Battery capacity 580mAh. Input 5V 0.58 A.

Swappable batteryiBattery can be exchanged by the user as part of normal operation. Service or recycling disassembly does not count.

No1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 36 built-in battery faults are repaired through Sonova service. It is not a normal removable or hot-swap pack.

Not available

Batteries includediNumber of headset batteries supplied, including the one already installed.

Not available

Not available

Claimed battery lifeiMaker’s maximum playback time per stated connection, codec, ANC, spatial audio and lighting settings. Name the spatial processing mode and other conditions in the source note. Unknown settings stay omitted.

ASennheiser MOMENTUM 4 Wireless

Connection	ANC	Hours (h)
Bluetooth	Yes	60

Source1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 39 up to 60 h music playback via Bluetooth with ANC on. Current maker page specifies iPhone, mid-volume, codec unspecified.

Bsoundcore Space One

Connection	ANC	Hours (h)
Bluetooth	Yes	40
Bluetooth	No	55

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Playtime with ANC off up to 55 hours, with ANC on up to 40 hours. The maker support FAQ says these are tested on an iPhone at 50% volume. The codec is not stated. LDAC reduces playtime, but the manual gives no figure.2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Playtime 55H/40H. FAQ: tested on an iPhone at 50% volume, ANC 40 hours, Transparency 40 hours, Normal 55 hours.

Battery life (claimed, max)

60h=CalculatedFrom Claimed battery life

55h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

60h=CalculatedFrom Claimed battery life

40h=CalculatedFrom Claimed battery life

Battery life without ANC (claimed)

Not available

55h=CalculatedFrom Claimed battery life

Charging port

USB-C1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

USB-C1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Charging page: USB-C port. Fully dry the USB port before charging.

Full charge timeiPublished time to fully charge a depleted headset. In-use charging can take longer.

120min1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 13 explicitly complete charging cycle approximately 2 h. Page 39 repeats 2 h. Ambient temperature and power source can change it.

120min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026SPECS table: Charging time 2 hours

Quick charge timeiCharge duration in the maker’s quick-charge claim. Read together with Quick charge playback.

5min2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026

5min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Charging page: 5 min gives 4 hr.2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Fast Charging: 5 Mins = 4H. FAQ: 5 min fast charge gives 4 hours in Normal mode.

Quick charge playbackiPlayback gained from Quick charge time. Charger power, codec, volume and ANC conditions belong in the source note.

4h2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026Exact specifications states 5 min up to 4 h. Separate marketing section says 10 min / 6 h, a different charge duration. The matched 5 min / 4 h pair is kept.

4h1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Charging page: 5 min gives 4 hr. The maker support FAQ says this is under Normal mode.2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Fast Charging: 5 Mins = 4H

Use while charging

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 13 explicitly permits music and phone calls during charging, possibly extending charge time.

No1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Charging page: Do not turn on your headphones while charging.

Charging dock or stand

Not available

Not available

Controls

4 of 6 differ

Controls

Buttons, Touch1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Buttons1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Button controls page lists physical buttons for NC, power, play and pause, volume and calls.4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Physical buttons on both ear cups. No touch controls.

Volume control

Touch1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Buttons1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Button controls page: Volume up and down by pressing the button once.

Game and chat mixiBalances separate game and chat audio streams. Mixing Bluetooth and dongle source volume alone does not count. Supported platforms belong in the source note.

Not available

Not available

Remappable controlsiOn-device button, touch or dial functions can be reassigned. Changing EQ alone does not count.

Not available

Yes4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026Controls are customizable in the Soundcore app.

Wear detection

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Wearing Detection page: music auto-pauses when you remove the headphones and resumes when you wear them again. It is enabled in the app.4Reviewsoundguys.com/anker-soundcore-space-one-review-111648Read 11 October 2026A sensor in the left ear cup pauses the music when you take the headphones off. It can be adjusted in the app.

Voice assistant

Siri, Google Assistant1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 29 host assistant activated by button over Bluetooth or USB, example Siri/Google Assistant depending on mobile system/app. No built-in always-listening assistant assumed.

Google Assistant, Siri7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Compatible with voice assistant: Google Assistant, Siri

Comfort and build

4 of 11 differ

Headband type

Padded1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Padded6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026Relaxed fit with flexible padded headband and thin ear pads.

Headband material

Plastic5Reviewsoundguys.com/sennheiser-momentum-4-wireless-review-2-86111Read 5 October 2026Use section explicitly describes a plastic band replacing the predecessor metal band. Not mapped to earcup shell material.

Not available

Frame material

Not available

Not available

Ear cup material

Not available

Not available

Ear pad material

Leatherette5Reviewsoundguys.com/sennheiser-momentum-4-wireless-review-2-86111Read 5 October 2026Use section explicitly soft leatherette padding.

PU leather7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Ear cushion material: Fabric, Foam, Imitation leather8Reviewt3.com/reviews/soundcore-space-one-reviewRead 11 October 2026The headband and the ear cups are made of a combination of PU leather and cushioning. SoundGuys calls the pads soft silicone, which does not match the maker pad parts or two other sources.

Replaceable ear pads

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Yes10Spec databaseifixit.com/Guide/Anker+Soundcore+Space+One+Ear+Pad+Replacement/185332Read 11 October 2026Repair guide: pry the ear pad off the driver housing with a spudger. The same steps apply to both pads.

Ear pad attachmentiHow a replacement ear pad attaches to the ear cup, not how the decorative outer cover attaches. A press-fit or snap-on pad counts as clip.

Clip1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 35 removal with fastening ring and new pad clicks into earcup.

Not available

Ear pad openingiUsable opening inside an ear pad, excluding the outer cushion. Depth is the internal space between pad surface and driver cover.

Width35Height60mm(1.4 × 2.4 in)5Reviewsoundguys.com/sennheiser-momentum-4-wireless-review-2-86111Read 5 October 2026Exact model metadata Inside earcup 60 x 35 mm, matching vertical oval in photos. Height 60, width 35. Depth unknown.

Not available

Ear tips included

Not available

Not available

Dust and water rating

Not available

Not available

User-replaceable parts

Ear pads1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Ear pads6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026iFixit publishes an ear pad replacement guide that pries the ear pad off the driver housing.

Software

1 of 3 differ

Companion app

Sennheiser Smart Control Plus2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026Current page names Smart Control Plus, while the 2025 manual still says Smart Control. Existing product remains supported.

Soundcore1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026App page: download the soundcore app to switch ambient sound modes, adjust EQ, update firmware and more.

App platforms

Android, iOS1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 19 explicitly Apple App Store and Google Play downloads.

Android, iOS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026App page shows Google Play and App Store. iFixit lists iOS 13.0 or later and Android 7.0 or later.6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026Soundcore app, iOS 13.0 or later and Android 7.0 or later.

User firmware updates

Yes1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Firmware update page: the app shows a new firmware version when it is found.

Dimensions and weight

1 of 2 differ

Headset weightiPublished headset mass without detachable cable or microphone when stated. A fixed cable remains included. Any unqualified maker weight is identified in the source note.

293g(10.3 oz)1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Page 39 maker approximate 293 g whole headset. No review metadata treated as a scale test.

265g(9.3 oz)2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Weight: 265g (9.35 oz)7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Weight in grams 265 g, the same as the maker.

Headset dimensionsiBody size with headband upright and ear cups in their normal wearing position. Width is across the head, height is top to bottom, and depth is front to back. Folded or flat-swivel dimensions are not substituted.

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Certifications

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Hi-Res Audio

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Communication certifications

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FCC ID

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Other certifications

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TCO Certified1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Manual cover: TCO Certified.

In the box

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In the box

MOMENTUM 4 headphones, Carry case, USB-A to USB-C cable, 2.5 mm to 3.5 mm audio cable, Airplane adapter, Quick guide, Safety guide, Compliance sheet1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Manual page 5 includes the headphones, USB cable, analog cable, carry case, in-flight adapter, Quick guide, Safety guide and Compliance sheet.2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026Exact maker box section corroborates manual page 5. Both cables approximately 1.2 m. BTD 700 is optional and excluded.

Space One headphones, USB-A to USB-C charging cable, 3.5 mm audio cable, Travel pouch, Quick start guide, Safety information6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 2026What's in the box: headphones, 12-inch USB-A to USB-C cable, 48-inch audio cable with straight 3.5 mm plugs on both ends, cloth storage pouch, quick start guide, safety instructions.7Retailer pagecoolblue.nl/en/product/947607/soundcore-space-one-black.htmlRead 11 October 2026Included by default: Travel Pouch, AUX cable, USB-A to USB-C charging cable, Safety sheet, Quick start guide

Cables includediSupplied playback, charging, dongle and adapter cables. A permanently attached headset cable is included and named as fixed.

ASennheiser MOMENTUM 4 Wireless

Type	Length (m)	Count
USB-A to USB-C charging and audio cable	1.2	1
2.5 mm to 3.5 mm TRS audio cable	1.2	1

Source1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 2026Manual page 5 explicitly gives both USB-A to USB-C and 2.5 mm to 3.5 mm audio cables at approximately 1.2 m each.

Bsoundcore Space One

Type	Length (m)	Count
USB-A to USB-C charging cable	0.3048	1
3.5 mm to 3.5 mm audio cable	1.2192	1

Source6Spec databaseifixit.com/Device/Anker_Soundcore_Space_OneRead 11 October 202612 in is 0.3048 m and 48 in is 1.2192 m, converted exactly.

Carrying caseiSupplied carrying case or pouch. A retail carton does not count as a carrying case.

Hard5Reviewsoundguys.com/sennheiser-momentum-4-wireless-review-2-86111Read 5 October 2026Exact review calls the supplied case fabric with rigid plastic. Hard case enum describes its supporting shell, not a soft pouch.

Soft2Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Specs row Special Features: Travel Pouch, AUX. A pouch, not a hard case.

Links

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Product page

us.sennheiser-hearing.com/products/momentum-4-wireless2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026

www.soundcore.com/products/space-one-a30350112Maker product pagesoundcore.com/products/space-one-a3035011Read 11 October 2026Maker US store page, read from an archived copy because the live page redirects by region.

Spec sheet

us.sennheiser-hearing.com/products/momentum-4-wireless2Maker product pageus.sennheiser-hearing.com/products/momentum-4-wirelessRead 5 October 2026

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Manual

cdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdf1Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/momentum-4-wireless/Instruction%20manual%20MOMENTUM%204%20Wireless/Instruction_manual_MOMENTUM_4_Wireless.pdfRead 5 October 202641-page current English manual, version 07/25 A05. Hardware 6-7, specifications 39, charging 13-15, audio 32-33, controls 22/26-31 and pad replacement 35 checked.

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdf1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000014218/en_US/000014218.pdfRead 11 October 2026Soundcore Space One user manual, support article A3035_Space One_User Manual. The English section is pages EN 01 to EN 04.

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.

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1.5years3Maker product pageus.soundcore.com/pages/warrantyRead 11 October 2026US warranty page: Headphones, all series, 18 months from the date of purchase. A statutory warranty in other markets can be longer.

Both are also in the API. Back to all headsets and headphones.