Headsets and headphones / Compare

Bose QuietComfort Headphones (2nd Gen) vs Sennheiser HDB 630

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Product A: Bose

QuietComfort Headphones (2nd Gen)

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B

Product B: Sennheiser

HDB 630

92 of 161 known

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Every value links to where we found it.

Only differences

ABose QuietComfort Headphones (2nd Gen)

BSennheiser HDB 630

General

4 of 8 differ

Series

QuietComfort1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Exact QuietComfort Headphones (2nd Gen) product identity. Ultra, original 2023 QuietComfort and soft-case SC packages are excluded.

Not available

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

443644, 895491-01002Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Original Bose 2026 guide AM901307-0010 Rev01, regulatory pages 4-8 name model 443644. Commercial 895491-0100 comes from the exact retailer below.6Retailer pagenfm.com/bose-quietcomfort-2nd-gen-headphones-in-black-70869201/70869201.htmlRead 8 October 2026Exact US Black item 70869201 lists Model 895491-0100. The commercial identifier and regulatory 443644 are separate naming systems. No soft-case SC bundle or Ultra identifier.

HDBT, 800164, 8001532Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Regulatory HDBT from exact manual. Current Lunar Silver 800164 / UPC 810091276273 and Black 800153 / UPC 810091276099 directly joined in public maker SKU rows. Legacy 700445 remains in old specification text but is not added to current variant rows. No assumption that old commercial barcode identifies the new box.

GTIN / EAN

0178178596846Retailer pagenfm.com/bose-quietcomfort-2nd-gen-headphones-in-black-70869201/70869201.htmlRead 8 October 2026Exact US Black item 70869201 lists UPC 017817859684. No soft-case SC bundle or Ultra identifier.

810091276273, 8100912760992Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026

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

6 August 20263Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Dated maker launch announcement August 6 2026. Preorder August 8, shipping August 13.

8 October 20257Press releasenewsroom.sennheiser.com/audiophile-sound-cut-loose-lyf8raRead 5 October 2026Maker dateline October 8, 2025 announcing HDB 630, with October 21 planned shipment. Newsroom header October 7 differs by publication timing, dateline used. Planned shipping not used alone as actual retail.

Status

Available1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Exact US Black reference can be purchased at the time of access.

Available2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Exact public maker variants both available true. Current selling prices are not used as launch evidence.

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

Bose QuietComfort Headphones (2023)3Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026The release refines the first-generation 2023 QuietComfort Headphones. No Ultra predecessor inferred.

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.

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.

$3593Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026US launch paragraph states 359 USD. Excludes tax and later discounts.

$499.959Press releasenewsroom.sennheiser.com/audiophile-sound-cut-looseRead 5 October 2026Original international maker launch release Availability explicitly states MSRP 499.95 USD. This is launch MSRP, not the current store amount or reviewer metadata. EUR tax scope unproved and omitted.

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

Not available

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

US1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Exact US product page and US retailer SKU prove US sale. Page language alone is not used.

US5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 20269Press releasenewsroom.sennheiser.com/audiophile-sound-cut-looseRead 5 October 2026Maker explicitly publishes the US suggested retail price. Current exact US storefront independently confirms the marketed US configuration.

ColoursiThe maker's own colour names

Black1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Black selected on exact maker page. Reference is US Black 895491-0100. Other colourways are not variants in this reference file.

Lunar Silver, Black2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026

Segment

Music1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Maker Headphones category, everyday music listening product. USB videoconferencing support does not establish a dedicated office edition.

Music7Press releasenewsroom.sennheiser.com/audiophile-sound-cut-loose-lyf8raRead 5 October 2026Maker launch describes audiophile music listening, consumer travel and voice calls.

Design

1 of 7 differ

Form factor

Over-ear1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Technical Specifications explicitly Around Ear Circumaural.

Over-ear1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Closed10Retailer pagebhphotovideo.com/c/product/1993087-REG/bose_895491_0100_quietcomfort_headphones_2nd_gen.htmlRead 8 October 2026Exact US Black 895491-0100 Specs, Open/Closed-Back: Closed-Back. No fold geometry substitution.

Closed1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

Wearing style

Headband1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Technical Specifications Headband: On Head Adjustable.

Headband1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Flat and inward2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Care and Maintenance pages 37-38: rotate both cups flat, retract into the headband, fold the left cup inward toward the headband and place in the case.

Flat5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Exact review says headphones fold flat into case, not inward into a compact headband. Current manual page 43 generic fold up wording interpreted with exact flat photograph and maker flat dimensions.

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

Yes2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Care and Maintenance page 37: rotate earcups inward until flat. B&H lists swivel No, which conflicts and is excluded.

Yes5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Review flat-fold description with current manual storage diagram. RTINGS public Travel paragraph explicitly earcups swivel.

RGB lighting

Not available

Not available

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

Not available

Not available

Drivers and sound

10 of 20 differ

Driver type

Dynamic10Retailer pagebhphotovideo.com/c/product/1993087-REG/bose_895491_0100_quietcomfort_headphones_2nd_gen.htmlRead 8 October 2026Exact SKU Specs, Driver Type: Dynamic. Diameter omitted due to a credible 30 mm and 40 mm source conflict.

Dynamic1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

42mm1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

110Retailer pagebhphotovideo.com/c/product/1993087-REG/bose_895491_0100_quietcomfort_headphones_2nd_gen.htmlRead 8 October 2026Exact SKU Specs Number of Drivers: 1 per Earpiece. Microphones not counted as audio transducers.

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.

Not available

Min6 HzMax40 kHz2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Exact current maker table and newer manual page 48: 6 Hz-40 kHz using Line-In, USB at 96 kHz, or Bluetooth aptX Adaptive at 96 kHz. Other settings 6 Hz-22 kHz. Older launch sheet limited analog/Bluetooth to 22 kHz, so current exact conditions take precedence.

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.

Not available

480Ω1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Maker explicitly active 480 ohms. Headphones require power even on analog input. No passive impedance exists in the table.

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.

Not available

105dB1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026105 dB SPL at 1 kHz / 0 dBFS. No per-1-mW or per-1-V sensitivity reference assigned.

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.

Not available

0.2%1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Advertised strict upper bound below 0.2 percent at 1 kHz / 100 dB SPL. Stored 0.2 is the published ceiling, not a measured result.

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.

48kHz5Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Wired listening FAQ: lossless USB input up to 24-bit/48 kHz. No Bluetooth codec maximum imported.

96kHz2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Maximum playback resolution 24-bit/96 kHz through USB-C or compatible aptX Adaptive source, including supplied BTD 700. Hi-res mode must be enabled in app. Not a claim that every codec supports this format.

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

24bits5Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Wired listening FAQ: USB input 24-bit/48 kHz.

24bits2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Maker explicit playback maximum 24 bits. No microphone recording format inferred.

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

Not available

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.

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 40 expressly EQ effects stored in headphones and active without app on a different Bluetooth source.

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

33Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Controls Connectivity Convenience section explicitly adjustable three-band EQ in Bose app.

56Reviewrtings.com/headphones/reviews/sennheiser/hdb-630Read 5 October 2026Public Office Work verdict explicitly five-band parametric EQ. Crossfeed is separate, not a virtual surround license or sixth EQ band.

EQ presets

Bass Boost, Treble Boost7Reviewsoundguys.com/i-tested-the-bose-quietcomfort-headphones-2nd-gen-and-theyre-a-legit-upgrade-161251Read 8 October 2026Sound section separately measures named Bass Boost and Treble Boost presets. No unnamed presets inferred.

Not available

Volume limit

Not available

Not available

Spatial audio

2 of 3 differ

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.

Bose Immersive Audio, Cinema Mode3Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Immersive Listening section names Bose TrueSpatial and Bose Immersive Audio Still, Motion and Cinema listening modes. Works with any audio source, not licensed Dolby Atmos decoding.

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

Yes3Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Still keeps virtual audio fixed in the room as the head moves. Motion follows head movement. Maker spatial head-movement behavior.

Not available

Noise cancelling

2 of 10 differ

Active noise cancelling

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Technical Specifications says active adjustable noise cancellation. ANC can be disabled in the app.

Yes1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Hybrid1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Acoustic Noise Cancelling FAQ explicitly identifies microphones inside and outside the earcups. Hybrid architecture, not inferred solely from adaptive controls.

Hybrid1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

63Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Noise section explicitly describes six-microphone system compensating for earcup seal gaps and maintaining active cancellation. Six is the complete system across headphones, not per cup. Separate call-microphone role count remains unproved.

43Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 8 explicitly two outward and two inward ANC microphones, four physical capsules. Separate from four voice microphones on page 7.

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

Yes3Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Noise section identifies adaptive feedforward controls compensating gaps from glasses, hair and hats. ActiveSense increases cancellation for sudden sounds in Aware mode.

Yes1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

109Reviewtomsguide.com/audio/headphones/bose-quietcomfort-headphones-2nd-gen-reviewRead 8 October 2026Review ANC section states 10 levels of adjustment. Off, Aware and custom mode counts are excluded.

Not available

ANC attenuation (claimed)

Not available

Not available

Transparency mode

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Aware Mode FAQ explicitly identifies transparency using microphone arrays to reproduce environmental sound.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Adjustable transparency

Yes3Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Custom Modes explicitly let users set individual balance between noise cancelling and acoustic transparency.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 33 pinch gestures or app slider adjusts ANC and transparency intensity. No numeric level count inferred.

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

Not available

Not available

Wind noise reduction

Yes4Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Listening Modes Custom row, page 23: supports a wind block noise-control setting. This is selectable processing, not an inferred foam microphone windscreen.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 34 explicitly selectable Wind noise reduction Off, Auto or Max. These are wind-control modes, not ANC attenuation levels.

Measured

4 of 21 differ

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

The measured response has slightly emphasized bass and mids. The treble has peaks and dips. Disabling ANC makes the response more uneven.7Reviewsoundguys.com/i-tested-the-bose-quietcomfort-headphones-2nd-gen-and-theyre-a-legit-upgrade-161251Read 8 October 2026Reviewer curves relative to the SoundGuys preference target, default profile and ANC on and off. Firmware and connection or codec are not published. Numerical dB and THD values are not read from graphs.

Not available

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

Speech was clear in quiet and reverberant rooms. Office noise weakened clarity. Street and wind tests suppressed more of the voice along with background noise.7Reviewsoundguys.com/i-tested-the-bose-quietcomfort-headphones-2nd-gen-and-theyre-a-legit-upgrade-161251Read 8 October 2026Ideal, office, street, wind and reverberant microphone demos. Firmware, phone, codec and USB or Bluetooth route are unreported. No numeric microphone frequency limits inferred.

Not available

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.

ABose QuietComfort Headphones (2nd Gen)

Not available

BSennheiser HDB 630

Connection	Hours (h)
Bluetooth	53.77

Source5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Company-provided unit tested over two weeks. Battery result 53 h 46 min added November 6, 2025, stored 53.77 h rounded. Firmware/app version, codec and ANC state not reported for this run, left unknown. No partial-battery extrapolation from Tom Guide workday percentages.

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

Not available

53.77h=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

7 of 16 differ

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

Built-in7Reviewsoundguys.com/i-tested-the-bose-quietcomfort-headphones-2nd-gen-and-theyre-a-legit-upgrade-161251Read 8 October 2026Call section describes headphone microphones used for calls. The owner guide Device Voice Control section also identifies earcup microphones. No in-line microphone in the supplied analog cable.

Built-in1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

Microphone element

Not available

MEMS1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

Omnidirectional3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 48 explicitly four omnidirectional speech microphones in 2x2 beamforming array. Capsule pattern is not the processed beamforming output pattern.

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

Not available

41Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Exact maker table says two speech microphones per side, total four. Current manual device diagram page 7 and specifications page 48 also explicitly four. ANC microphones counted separately.

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.

Not available

Min50 HzMax10 kHz1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Manual page 48 adds -3 dB condition to same 50 Hz-10 kHz maker speech range.

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.

16kHz5Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Wired listening FAQ: voice output signal up to 24-bit/16 kHz through USB-C. This is transmitted USB microphone audio, not acoustic microphone bandwidth.

Not available

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

Not available

Not available

Flip to mute

Not available

Not available

Mute button

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 36 multifunction button once toggles microphone while in call. Shared context-sensitive button, not dedicated mute hardware. BTD 700 also has its own separate mute control.

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.

Not available

Voice prompt3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Headphone Mute on / Mute off voice prompts page 36. Adapter red LED page 37 is not classified as a headphone cup or microphone LED.

Sidetone

Yes2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Noise Cancellation While On a Call, page 20: Self voice is activated so the user hears their voice naturally.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Adjustable sidetone

Yes2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Page 20 directs Self voice adjustment through Bose app Settings. Maker FAQ says self voice is unavailable with ANC disabled.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Comfort Call page 37 own-voice playback can be enabled/disabled in app. No continuous intensity slider asserted.

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

Not available

Not available

Connectivity

11 of 20 differ

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

Analog, USB, Bluetooth2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Bluetooth menu pairing page 26, Aux Audio page 31 and USB Type-C Audio page 32 document these source audio routes. The analog source uses an active USB-C to 3.5 mm cable.

Analog, USB, Bluetooth3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

3.5 mm TRS14Reviewrtings.com/headphones/reviews/bose/quietcomfort-headphones-2nd-genRead 8 October 2026Exact review Wired Gaming verdict identifies the included 1/8-inch TRS-to-USB-C cable as audio-only. This is the analog source plug. The headset has USB-C, requires power and disables voice pickup on this route per owner guide page 31.

3.5 mm TRS3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 5 stereo 3.5 mm source and 2.5 mm headphone plugs. Analog mode disables Bluetooth, call controls and headphone microphone functions, page 41. No TRRS microphone cable asserted.

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

USB-C2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Aux Audio page 31: both supplied cables attach to USB-C on the right cup. No 3.5 mm headset socket or original 2.5 mm jack.

2.5 mm3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

Not available

1.2m3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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-C2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Headphone Controls diagram and Wired Connections identify USB-C port on right cup.

USB-C3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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.

Yes2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026USB Type-C Audio page 32 supports playback from a connected USB-C source.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 42 explicitly USB playback plus microphone recording on Mac/PC/mobile device, with simultaneous charging. Bluetooth should be disconnected first.

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.

No2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Aux Audio page 31 requires the headphones to be powered on. Battery-depleted operation requires a powered USB connection, not passive analog playback.

No6Reviewrtings.com/headphones/reviews/sennheiser/hdb-630Read 5 October 2026Public Wired Gaming verdict explicitly headphones must be powered on even via analog cable. Active analog converter requires battery. No gated measurements accessed.

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

None11Reviewrtings.com/headphones/reviews/bose/quietcomfort-headphones-2nd-genRead 8 October 2026Wireless Gaming verdict says no low-latency wireless dongle is included. Generic optional Bluetooth transmitters such as AirFly do not establish a dedicated 2.4 GHz headset receiver.

Included3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 5 exact BTD 700 USB-C Bluetooth transmitter included. It is not a proprietary 2.4 GHz headset connection. No USB-A adapter in this exact box list.

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

USB-C3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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.

9m1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Range FAQ: up to 30 ft (9 m). The maker metric claim of 9 m is stored, not a conversion of the rounded 30 ft. Walls, doors and radio interference reduce range.

Not available

Bluetooth

5.41Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Technical Specifications explicitly Bluetooth 5.4. Bluetooth Low Energy listing does not establish LE Audio support.

5.21Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Headphones Bluetooth 5.2. Included BTD 700 adapter Bluetooth 5.4 is different hardware and is not the headphones version.

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

SBC, AAC7Reviewsoundguys.com/i-tested-the-bose-quietcomfort-headphones-2nd-gen-and-theyre-a-legit-upgrade-161251Read 8 October 2026Exact 2nd Gen review Connectivity section: SBC and AAC only, no LDAC or aptX. No sibling Ultra codec inherited.

SBC, AAC, aptX, aptX HD, aptX Adaptive1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Headphone codecs SBC/AAC/aptX/aptX HD/aptX Adaptive. BTD 700 supports additional LC3 and aptX Lossless with other compatible devices, but these are not asserted for HDB 630.

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

No8Reviewexpertreviews.co.uk/technology/headphones-audio/bose-quietcomfort-headphones-2nd-gen-reviewRead 8 October 2026The exact base QCH2 review says no LE Audio and no Auracast. Source tested for 3 weeks. Original Ultra or Ultra 2 later beta firmware excluded.

Not available

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

No7Reviewsoundguys.com/i-tested-the-bose-quietcomfort-headphones-2nd-gen-and-theyre-a-legit-upgrade-161251Read 8 October 2026Connectivity: no Auracast at launch. Later Ultra LE Audio and Auracast firmware is excluded from this base model.

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.

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026FAQ explicitly maintains connection to two devices simultaneously.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 19 two active Bluetooth sources, one audio stream at a time, six stored pairing profiles. BTD 700 itself stores one headset and should not be confused with headset pairing memory.

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

21Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026FAQ explicitly two simultaneous Bluetooth source connections. Pairing memory is separate.

23Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Paired devices remembered

Not available

63Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

Google Fast Pair2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Bluetooth Connections, page 30: Google Fast Pair enables one-tap pairing on Android devices. Bluetooth and Location must be enabled. No Swift Pair inferred.

Not available

Base station

Not available

Not available

Latency

2 of 2 differ

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

Not available

Yes4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact HDB 630 FAQ troubleshooting says triple-press supplied BTD 700 button triggers gaming/low-latency mode and scales 96 kHz down to 48 kHz. This is the matched adapter route, not native proprietary 2.4 GHz. No generic dongle 30 ms claim borrowed.

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

ABose QuietComfort Headphones (2nd Gen)

Not available

BSennheiser HDB 630

Connection	Mode	Latency (ms)
Bluetooth	aptX Adaptive	80
USB	Audio playback maximum	40
Analog	Aux without microphone	30

Source4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact HDB 630 gaming FAQ states aptX Adaptive 80 ms from Qualcomm, USB audio max 40 ms and aux 30 ms without microphone. USB microphone separate max 40 ms excluded from playback rows. Host/test method unspecified, these are manufacturer claims, not lab measurements.

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.

Android, iOS12Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Bose App setup page 12 directs to the App Store and Google Play. Bluetooth Fast Pair is explicitly Android. Phone Call and Voice Control sections document microphone operation on a paired mobile source. No specific desktop or console USB compatibility is inferred from generic computer charging instructions.

Windows, macOS, Android, iOS3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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.

ABose QuietComfort Headphones (2nd Gen)

Platform	Connection	Microphone works
Android	Bluetooth	Yes
iOS	Bluetooth	Yes

Source12Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Phone Call and Voice Control sections document microphone operation on a paired mobile source over Bluetooth. Bose App setup page 12 directs to the App Store and Google Play. No specific desktop or console USB compatibility is inferred from generic computer charging instructions.

BSennheiser HDB 630

Platform	Connection
Windows	USB
macOS	USB
Windows	Bluetooth
macOS	Bluetooth
Android	Bluetooth
iOS	Bluetooth

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Mac/PC USB digital playback and recording page 42, Bluetooth smartphone and PC/Mac call sections, and included BTD 700 host compatibility page 49 (Windows 10+, macOS 11/12, Android 13+, USB-C iPhone/iPad). Generic mobile USB does not establish all headphone USB routes on every phone.

Official licence

Not available

Not available

Battery and charging

8 of 13 differ

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

530mAh10Retailer pagebhphotovideo.com/c/product/1993087-REG/bose_895491_0100_quietcomfort_headphones_2nd_gen.htmlRead 8 October 2026Exact SKU Battery section: 530 mAh LiPo battery. Typical or rated basis unstated. Manufacturer manual omits capacity. The exact 2nd Gen John Lewis item independently indexed 530 mAh. Inaccurate retailer cable and wired-support rows are excluded.

700mAh1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026700 mAh at 3.7 V in sheet and manual, which coherently equals 2.59 Wh. Sheet rounded energy 2.7 Wh differs, so no energy field inferred.

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

No2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Safety section says battery removal is only by a qualified professional. Page 39 directs Bose battery service and compatible Bose-certified batteries. No routine user exchange or disposal procedure is represented as swappable operation.

No4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact FAQ explicitly batteries cannot be exchanged, sealed embedded pack. Professional service is separate from user swapping.

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

Not available

11Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Page 3 battery table one single physical cell installed, none outside product.

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.

ABose QuietComfort Headphones (2nd Gen)

ANC	Spatial audio	Hours (h)
Yes	No	24
Yes	Yes	18

Source4Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Battery page 34: 24 h full ANC with Immersive Audio off and 18 h full ANC with Immersive Audio on. Connection and codec are unstated in this claim, so the rows leave them unknown. Maker product footnote gives 75 dB SPL volume. These are not ANC-off figures or the Ultra 30 h.

BSennheiser HDB 630

Connection	ANC	Hours (h)
Bluetooth	Yes	60

Source1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Up to 60 h music via Bluetooth with ANC, iPhone at mid volume, standard resolution. Exact FAQ separately claims up to 45 h using aptX Adaptive 24-bit/96 kHz with BTD 700. Codec-less table avoids duplicate indistinguishable rows.

Battery life (claimed, max)

24h=CalculatedFrom Claimed battery life

60h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

24h=CalculatedFrom Claimed battery life

60h=CalculatedFrom Claimed battery life

Battery life without ANC (claimed)

Not available

Not available

Charging port

USB-C2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Battery page 33: charges through the right-earcup USB-C.

USB-C1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

180min2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Battery page 34 says allow up to 3 hours. Faster powered off. Slower during use.

120min1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Maker full-charge claim about two hours. Manual page 16 explicitly complete charge cycle. Ambient above 30 C can extend duration.

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

15min2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Battery page 34: a 15 minute charge of a depleted battery gives up to 2.5 hours with ANC on and Immersive Audio off.

10min1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

2.5h2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Page 34 footnote: 75 dB SPL playback, 3-band EQ at zero, Quiet full ANC and Immersive Audio off. Up to 2.5 h. The Immersive Audio on alternative of 2 h is not this field. Maker test conducted April 2025 on production-representative 2nd Gen units.

7h1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 202610-minute charge for up to seven hours playback, corroborated current manual page 16 and exact FAQ near-empty battery. Current maker comparison table says six hours, contradicted by those three more exact sources. ANC state and codec for quick charge unstated.

Use while charging

Yes2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Battery page 33: Bluetooth or USB audio during charging. Page 32 supports battery-depleted operation using external USB power. Analog playback while charging is not asserted.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 16 explicitly music/calls while charging, potentially extending recharge time.

Charging dock or stand

Not available

Not available

Controls

5 of 6 differ

Controls

Buttons2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Headphone Controls pages 13-19 describe the Bluetooth/Power switch, Action, multifunction and volume buttons. No touch controls inferred.

Buttons, Touch3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Volume control

Buttons2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Media Playback and Volume page 16 uses plus and minus buttons.

Touch3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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.

Yes2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Shortcuts page 19 allows enabling, disabling or changing the Action-button shortcut through the app. Other fixed buttons are not described as remappable.

Not available

Wear detection

No9Reviewtomsguide.com/audio/headphones/bose-quietcomfort-headphones-2nd-gen-reviewRead 8 October 2026Review Specs and Design sections state no wear detection. No RGB or additional microphone sensors inferred from missing wear detection.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Pages 8 and 39 automatic lifting/on-head switch-on, pause/resume and call mute on removal.

Voice assistant

Not available

Siri, Google Assistant3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 38 host Siri or Google Assistant via multifunction button, Bluetooth or USB, conditional on device/app support. No always-listening assistant inferred.

Comfort and build

4 of 11 differ

Headband type

Padded3Press releasebose.com/pressroom/bose-updates-the-iconic-quietcomfort-headphonesRead 8 October 2026Refined Design section explicitly plush soft synthetic-leather headband cushioning.

Padded4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026

Headband material

Plastic with protein-leather cushioning1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Product comparison identifies streamlined plastic headband. Protein-leather material and plush headband cushioning are described in exact product specs and launch release. No prior-model steel reinforcement imported.

Japanese protein leatherette4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact FAQ specifically Japanese leatherette headband, maker press names protein leatherette from IDEATEX. Does not identify frame/yoke material.7Press releasenewsroom.sennheiser.com/audiophile-sound-cut-loose-lyf8raRead 5 October 2026Exact maker launch explicitly Japanese protein leatherette headband from IDEATEX.

Frame material

Plastic yoke1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Product comparison, exact second-generation column explicitly plastic yoke. This describes the structural yoke, not a claim that every internal part is plastic.

Not available

Ear cup material

Not available

Not available

Ear pad material

Protein leather1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Technical Specifications Ear Cushion Material explicitly Protein Leather.

Leatherette (synthetic)2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Exact current product ear-pad material field explicitly synthetic leatherette, separate from headband lining.

Replaceable ear pads

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Technical Specifications says Removable Cushion. Owner guide pages 40-41 releases and reinstalls all retaining tabs and identifies replacement accessories.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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.

Clip2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Pages 40-41: release tabs around the earcup rim and snap every tab back into place. Stored as clip, not magnetic or twist-lock.

Clip3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 44 fastening ring pulls off and replacements click audibly into place around earcup, clip fit.

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

Not available

Not available

Ear tips included

Not available

Not available

Dust and water rating

Not available

Not available

User-replaceable parts

Ear cushions, USB-C cables2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Pages 40-41 show removable cushions and page 39 lists replacement accessories. Both USB cables are separate replaceable accessories. Battery service is excluded.

Ear pads, Analog audio cable3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 44 ear-pad replacement. Exact FAQ also offers aux cable as spare. Sealed battery is not user exchangeable.

Software

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Companion app

Bose2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Bose App page 12 identifies the app for setup and product control.

Sennheiser Smart Control Plus1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

App platforms

Android, iOS2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Bose App setup diagram gives App Store and Google Play. Google Fast Pair is explicitly Android. The Tom's Guide review independently names iOS and Android app support.

Android, iOS1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

User firmware updates

Yes2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Care and Maintenance page 39: updates automatically when the Bose app finds firmware. Alternative user update via btu.Bose.com on a computer.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Dimensions and weight

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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.

230g(8.1 oz)5Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Technical Specs, Entire Product System: 0.507 lb. Converted using 453.59237 g/lb and rounded to 0.1 g. Published rounded claim, cable condition unstated. SoundGuys 230 g agrees. TechRadar 241 g conflicts. No reviewer measurement is asserted.

Not available

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.

Not available

Width180Height195Depth51mm(7.1 × 7.7 × 2 in)1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026180 x 195 x 51 mm explicitly folded flat. No packaging, case or unfolded reviewer dimensions substituted.

Certifications

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Hi-Res Audio

Not available

Hi-Res Audio4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact FAQ transducer answer explicitly Hi-Res Audio certification. Wireless Hi-Res logo certification not expressly identified and omitted.

Communication certifications

Not available

Not available

FCC ID

A944436442Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Regulatory section gives FCC ID A94443644 for model 443644.

Not available

Other certifications

Not available

Not available

In the box

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In the box

QuietComfort Headphones (2nd Gen), Carry case, USB-C to USB-C cable, USB-C to 3.5 mm cable, Safety Sheet5Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Product What is in the box inventory. Technical Specs says Audio Cable Included No, which the inventory and FAQ contradict, so it is excluded.

Sennheiser HDB 630 headphones, BTD 700 USB-C Bluetooth dongle, USB-C to USB-C cable, 3.5 mm to 2.5 mm analog audio cable, In-flight adapter, Carry case, Quick guide, Safety guide, Compliance sheet3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 5 full exact bundle includes BTD 700, both 1.2 m cables, in-flight adapter, case and three documents. Older sheet omits dongle from box list, newer exact manual/current product agree it is included.

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

ABose QuietComfort Headphones (2nd Gen)

Type	Length (m)	Count
USB-C to USB-C	0.9906	1
USB-C to 3.5 mm	Not available	1

Source5Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Maker inventory lists a C-to-C 39 in cable plus a USB-C-to-3.5 mm cable. Analog length left unknown. The B&H 20 in charging cable claim conflicts and is excluded.

BSennheiser HDB 630

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

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

Hard4Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Store the Headphones pages 37-38 depict a protective zipper carrying case. The SoundGuys review calls it a sturdy protective case. The US Black reference includes the hard case, not the SC soft-case package.

Hard5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Exact review explicitly fabric-covered hardshell case. Maker packaging Hard box not substituted for carry case.

Links

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Product page

www.bose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.html1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Exact current maker product page with Black colour selection.

us.sennheiser-hearing.com/products/hdb-6302Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Full current maker product HTML and public /products/hdb-630.js directly opened. Current model specification and exact initial product swatches are separated from comparison products.

Spec sheet

www.bose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.html1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026Maker Technical Specifications and product FAQ. No separate technical datasheet was found.

cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdf1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Full three-page maker spec sheet dated 08/25 directly opened and technical/battery tables visually checked. Original article 700445 / EAN 4260752333450 / UPC 810091273548 is documented. Current maker storefront replaces commercial SKUs without a new model name. Only current exact SKU/UPC pairs are listed below. Device weight 311 g conflicts with newer 12/25 manual page 48 at 293 g. No maker correction establishes either figure, so weight is omitted.

Manual

assets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdf2Owner's manualassets.bosecreative.com/m/1bc02035222c5422/original/901307_OG_QCHII-Headphonearn_en.pdfRead 8 October 2026Official Bose-hosted 45-page English Owner Guide linked from the current product page. Not the QuietComfort 2 2003 guide or the Ultra guide.

cdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdf3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Full 51-page official English manual, version 12/25 A02, directly opened. Headphone and included Bluetooth adapter sections reviewed separately.

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.

Not available

Not available

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.

1year1Maker product pagebose.com/p/headphones/bose-quietcomfort-headphones-2nd-gen/QC2G-HEADPHONEARN.htmlRead 8 October 2026US product page Bose 1-Year Limited Warranty section. Starts immediately and covers mechanical breakdown and battery failure. Optional BoseCare years excluded.

2years3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 50 HDB 630 warranty 24 months in named North America, Latin America/Caribbean, Asia-Pacific, Europe and Middle East. Included BTD 700 separately 12 months in first region group, 24 months Europe/Middle East. Headphone field reflects HDB 630, not accessory warranty.

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