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Bose QuietComfort Earbuds II vs TOZO A1

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Product A: Bose

QuietComfort Earbuds II

74 of 166 known

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B

Product B: TOZO

A1

51 of 166 known

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Every value links to where we found it.

Only differences

ABose QuietComfort Earbuds II

BTOZO A1

General

6 of 8 differ

Series

QuietComfort1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

A Series1Maker product pagetozostore.com/products/a1Read 15 October 2026The store tags the product as A Series.

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

870730-0010, 870730-00204Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026Spec box lists 870730-0010 for the Triple Black unit.9Retailer pagegreentoe.com/product/Bose_QuietComfort_Earbuds_II_Noise-Canceling_True_Wireless_In-Ear_Headphones__Triple_870730-0010Read 10 October 2026870730-0010 Triple Black. The Soapstone listing on the same retailer gives 870730-0020.

A1 Mini1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Model: A1 Mini. The pairing name is TOZO-A1. No regulatory model code is published.

GTIN / EAN

Not available

6971681319900, 6971681319887, 6971681319870, 6971681319894, 6971681319856, 69716813198638Maker product pagetozostore.com/products/a1.jsRead 15 October 2026Store barcode field for the colours Black 6971681319900, Blue 6971681319887, Green 6971681319870, Light Khaki 6971681319894, White 6971681319856 and Rose Gold 6971681319863. The Orange, Purple and Light Purple options carry internal codes that are not valid barcodes, so they are left out. ShopSavvy lists a different barcode, 6971681317265, for a green A1.

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

7 September 20221Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

Not available

Status

Discontinued2Maker product pagesupport.bose.co.uk/product/bose-quietcomfort-earbuds-ii/01t8c00000OydAFAAZRead 10 October 2026The former Bose product page URL now redirects to the earbuds category, which no longer lists the QuietComfort Earbuds II. The support page is reported to give the sale period as 2022 to 2025.

Available8Maker product pagetozostore.com/products/a1.jsRead 15 October 2026The store lists the product as available on 2026-10-15.

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.

Bose QuietComfort Ultra Earbuds11Reviewsoundguys.com/bose-quietcomfort-ultra-earphones-vs-bose-quietcomfort-earphones-ii-102644Read 23 October 2026SoundGuys calls the QuietComfort Ultra Earbuds a direct successor to the QuietComfort Earbuds II.

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.

$2991Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026US MSRP 299 USD in the Bose release. US prices exclude sales tax.5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 2026Tested at 299 USD, 280 GBP and 429 AUD at the September 2022 launch.

Not available

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.

Not available

Not available

ColoursiThe maker's own colour names

Triple Black, Soapstone1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Triple Black at launch. Soapstone announced for later in 2022.

Black, Orange, Blue, Green, Light Khaki, White, Rose Gold, Purple, Light Purple8Maker product pagetozostore.com/products/a1.jsRead 15 October 2026Store option names, verbatim. Blue shows as unavailable on 2026-10-15. The tech specs row Color lists a different set of names, so the store option names are used.

Segment

Music1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

Not available

Design

1 of 4 differ

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

In-ear1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

In-ear1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Type: In-ear True Wireless.

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

Stem5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 2026The design incorporates a stem that hosts the touch controls.

Stemless1Maker product pagetozostore.com/products/a1Read 15 October 2026The earbuds are a compact body with no stalk, as shown in the product photos.

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

Either bud6Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026February 2023 firmware lets either bud be used alone, even if the other is empty.7Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 2026Editor's note dated 16 February 2023 states a firmware update allows single-bud use with either the left or right bud.

Either bud3Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Section 5.0 Voice Assistant: when using a single or both earbuds, triple-tap the L/R earbud. The quick guide reset step also covers the case where only one earbud works. Either earbud is read as usable alone.

RGB lighting

Not available

Not available

Drivers and sound

10 of 17 differ

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

ABose QuietComfort Earbuds II

Type	Diameter (mm)
Dynamic	9.3

Source7Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 2026Specs list 9.3 mm transducers. Count per bud and role are not stated.

BTOZO A1

Type	Diameter (mm)	Count per earbud
Dynamic	6	1

Source1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Driver: 6 mm dynamic driver. NerdTechy says there is a 6 mm speaker inside each earbud, so one per earbud. No driver role is named.

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

Dynamic9Retailer pagegreentoe.com/product/Bose_QuietComfort_Earbuds_II_Noise-Canceling_True_Wireless_In-Ear_Headphones__Triple_870730-0010Read 10 October 2026Retailer spec table lists driver type Dynamic.

Dynamic1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Driver: 6 mm dynamic driver.

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

9.3mm=CalculatedFrom Drivers per bud

6mm=CalculatedFrom Drivers per bud

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

Not available

1=CalculatedFrom Drivers per bud

Diaphragm material

Not available

High-elastic polymer1Maker product pagetozostore.com/products/a1Read 15 October 2026Feature text Bass Enhancement: the diaphragm utilizes a high-elastic polymer. Stored as published.

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

Not available

Min20 HzMax20 kHz1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Frequency response range: 20 Hz - 20 kHz. Maker figure with no stated conditions.

Impedance

Not available

16Ω4Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026Item details Audio table: Impedance 16 ohm. This matches the label in the maker photo.9Maker product pagecdn.shopify.com/s/files/1/0737/0578/3585/files/a1mini-black-main01.webpRead 15 October 2026Main product photo on the maker store: the label inside the case lid reads Impedance 16 ohm, water resistance IPX5, battery 40 mAh, 3.7 V, 0.148 Wh. The label is read from a marketing photo and no spec table repeats the impedance.

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

Not available

Not available

Sensitivity reference

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026CustomTune plays a tone when the buds are placed in the ears. A microphone inside the bud measures the ear canal response and tailors the sound frequency profile within half a second.

Not available

Personalised soundiA profile from a hearing test or ear scan

Not available

Not available

Onboard EQ

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

Not available

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

36Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026

Not available

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

Bass Boost, Bass Reducer, Treble Boost, Treble Reducer6Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026Bass Boost, Bass Reducer, Treble Boost and Treble Reducer presets plus a three-band EQ.

Not available

Volume limit

Not available

Not available

Spatial audio

1 of 2 differ

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

Not available

Not available

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

No8Reviewtomsguide.com/reviews/bose-quietcomfort-earbuds-2Read 10 October 2026The review states 3D (spatial) audio is not available.

Not available

Noise cancelling

7 of 11 differ

Active noise cancelling

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

No4Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026Item details Noise Control: Sound Isolation. The Best Buy listing says Noise Cancelling (Active): No. The earbuds use passive isolation only.5Retailer pagebestbuy.com/product/tozo-a1-wireless-earbuds-bluetooth-5-3-lightweight-ipx5-2-mic-ai-calls-premium-sound-bass-32-eqs-charging-case-black/CZT87XXGG7Read 21 October 2026Specifications: Noise Cancelling (Active): No. Listing by a marketplace seller, model A1.

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

Hybrid1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Four microphones per bud, one inside and three outside, feed the ANC system. Interior and exterior microphones together make this hybrid.

Not available

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

81Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Bose states four microphones in each bud sense and measure unwanted noise for ANC. Four per bud, eight across the pair. Whether all are also used for calls is not stated.

Not available

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

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026CustomTune measures the ear canal response each time the buds are placed in the ears, then tunes noise cancellation. It continuously adapts to changing noise in the environment.

Not available

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

106Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026Custom noise-cancelling modes use a ten-point scale for the ANC level. Stored as 10.

Not available

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

Not available

Not available

Transparency mode

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

Not available

Adjustable transparency

Not available

Not available

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

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Aware Mode with ActiveSense. ActiveSense applies noise cancellation only while loud sounds last. It blends cancellation into transparency and is not an activity-based switch.

Not available

Conversation detection

Not available

Not available

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

Not available

Not available

Measured

4 of 23 differ

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

SoundGuys finds the default response has under-emphasized mids and over-emphasized sub-bass. Bass is much stronger than on any previous Bose headset.3Measurementsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026Written objective assessment. Out of the box under-emphasized mids and over-emphasized sub-bass against the SoundGuys target.

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

SoundGuys finds microphone quality standard. It rejects faraway noise decently and handles wind noise poorly.3Measurementsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026Lab and demo recordings in ideal, office, street and windy conditions. Standard quality, decent rejection of faraway noise, weak wind handling.

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

ABose QuietComfort Earbuds II

Hours (h)
7.25

Source3Measurementsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026SoundGuys loop test of constant real music playback peaking at 75 dB SPL lasted 7 h 15 min on one charge. Stored as 7.25 h. Noise-control mode, firmware and codec are not stated. The earbuds cannot switch ANC off, so the row sets no ANC flag.

BTOZO A1

Not available

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

7.25h=CalculatedFrom Battery life (measured)

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Microphones and calls

4 of 7 differ

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

Not available

24Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026Title and bullets say 2 Mics for AI Calls and the Audio table says 2 Mics ENC Clear Call. The manual labels one calling mic per earbud, so 2 is read as one per earbud.

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

81Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Four microphones in each bud, one on the inside and three on the outside. Eight across the pair.5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 20267Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 2026

24Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026No ANC, so the call microphones are the only microphones. Same evidence as the call microphone count.

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

Not available

Not available

Mic noise reduction

DSP1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Bose cites improved voice pickup from an updated noise removal algorithm. Stored as DSP. No AI claim is made.

AI4Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026Bullet: AI-Enhanced ENC for Clear Calls. This is the maker brand store wording. The maker site does not describe the microphones and a 2021 review found no advanced call noise reduction on the first release.

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

Not available

Not available

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

Not available

Not available

SidetoneiHear your own voice in calls

Yes6Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026

Not available

Connectivity

5 of 18 differ

Chip

Qualcomm S5 Audio SoC10Press articleaudioxpress.com/news/bose-to-launch-new-wireless-earbuds-powered-by-qualcomm-s5-audio-socRead 10 October 2026Qualcomm confirmed at IFA 2022 that the new Bose QuietComfort Earbuds II are powered by the Qualcomm S5 Audio SoC. Bose does not name the chip in its launch release.

Not available

Connections

Bluetooth1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

Bluetooth1Maker product pagetozostore.com/products/a1Read 15 October 2026Bluetooth only. No other connection is listed.

Bluetooth

5.31Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

5.31Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Bluetooth version: Bluetooth 5.3. The feature text says Bluetooth 5.3.

Bluetooth codecs

SBC, AAC4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026Only SBC and AAC are available. The planned Snapdragon Sound aptX update announced in 2022 is not confirmed as released.5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 20266Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 20268Reviewtomsguide.com/reviews/bose-quietcomfort-earbuds-2Read 10 October 2026

AAC, SBC1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Audio codec: AAC/SBC.

Bluetooth profiles

A2DP, HFP9Retailer pagegreentoe.com/product/Bose_QuietComfort_Earbuds_II_Noise-Canceling_True_Wireless_In-Ear_Headphones__Triple_870730-0010Read 10 October 2026

HSP, HFP, A2DP, AVRCP1Maker product pagetozostore.com/products/a1Read 15 October 2026Feature text: supports HSP, HFP, A2DP and AVRCP.

LE Audio

Not available

Not available

Auracast

Not available

Not available

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

No4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 20265Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 20266Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026

Not available

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

Not available

Not available

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Not available

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

Not available

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Not available

Not available

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

9.1m9Retailer pagegreentoe.com/product/Bose_QuietComfort_Earbuds_II_Noise-Canceling_True_Wireless_In-Ear_Headphones__Triple_870730-0010Read 10 October 2026Spec table lists 30 ft / 9.1 m over Bluetooth. Bose regional product pages are no longer online. Tom's Guide states up to 100 feet, which is not stored.

10m1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Effective Bluetooth range: 10 m.

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

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

Not available

Not available

Latency

None of 3 known

Low latency mode

Not available

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

2 of 4 differ

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

Android, iOS1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Bose states compatibility with both Apple and Android devices.

Not available

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

ABose QuietComfort Earbuds II

Platform	Connection
Android	Bluetooth
iOS	Bluetooth

Source1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

BTOZO A1

Not available

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

Not available

Not available

Official licence

Not available

Not available

Battery and charging

10 of 13 differ

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

Not available

40mAh1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Battery capacity: 40 mAh for the earphones. The case label in the product photo reads 40 mAh, 3.7 V, 0.148 Wh. Whether the figure is one earbud or the pair is not stated. NerdTechy says each earbud has a 40 mAh battery.

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

Not available

Not available

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

ABose QuietComfort Earbuds II

Mode	Includes case recharges	Hours (h)
ANC on	No	6
ANC on	Yes	24

Source1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Up to 6 hours per charge. The case adds three further charges for 24 hours in total. Bose release does not name the noise-control mode. What Hi-Fi? and B&H label the 6 hours as Bluetooth with ANC. The earbuds cannot switch ANC off.5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 2026Tech specs list 6 hours (BT + ANC) and 24 hours including the charging case.

BTOZO A1

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	7
ANC off	AAC	Yes	32

Source1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Music play time (AAC, default setting, 50% volume): 7 h on a single charge and 32 h with the charging case. An archived store page from 6 December 2023 gave 5.5 h and 22 h for the same hardware figures, so the claim changed over time. The current claim is stored.

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

6h=CalculatedFrom Claimed battery life

7h=CalculatedFrom Claimed battery life

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

6h=CalculatedFrom Claimed battery life

Not available

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

Not available

7h=CalculatedFrom Claimed battery life

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

24h=CalculatedFrom Claimed battery life

32h=CalculatedFrom Claimed battery life

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

24h=CalculatedFrom Claimed battery life

Not available

Talk time (claimed)

Not available

Not available

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

60min1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Bose states the case fully charges the buds in one hour.

120min1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Cable charge time: 2 h for the earphones. The page does not say how the earbuds are charged, so the earbud time is read as charging in the case.

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

Not available

Not available

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

20min1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Bose states a quick 20-minute charge gives up to two hours of playback.

Not available

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

2h1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Earbuds-only playback of up to 2 hours after 20 minutes in the case.

Not available

Charging case

3 of 10 differ

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

Not available

400mAh1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Battery capacity: 400 mAh for the charging case.

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

Not available

Not available

Case charging port

USB-C1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

USB-C1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Charging port: USB Type-C.

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

180min1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Bose states the case fully recharges in three hours via USB-C.

120min1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Cable charge time: 2 h for the charging case.

Wireless charging

No4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 20265Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 20266Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Screen on case

Not available

Not available

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

Not available

Not available

Controls

4 of 5 differ

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

Touch, Swipe1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 20266Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026

Touch1Maker product pagetozostore.com/products/a1Read 15 October 2026Feature heading: Smart Touch Control. The quick guide lists tap and tap-and-hold gestures on the earbuds.10Reviewnerdtechy.com/tozo-a1-reviewRead 15 October 2026Controls section: touch-activated controls on the exterior of each earbud.

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

Swipe6Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 20267Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 2026

Touch10Reviewnerdtechy.com/tozo-a1-reviewRead 15 October 2026Controls section: touch-activated controls adjust the volume, skip or go back a track and play or pause through finger taps.

Gestures

Single tap: play or pause, Double tap: next track, Triple tap: previous track, Swipe up or down: volume, Touch and hold: noise-cancelling mode or voice assistant (assignable)6Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026Single, double and triple tap and swipe up or down are fixed. Long press on either bud is assignable to noise-cancelling mode switching or the voice assistant.

Tap once on either earbud: play or pause, answer a call, Double tap the left earbud: previous track, Double tap the right earbud: next track, Hold the right earbud for 2 seconds: volume up, Hold the left earbud for 2 seconds: volume down, Hold either earbud for 2 seconds: hang up or reject a call, Triple tap either earbud: wake the voice assistant3Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Section 3.0 and 4.0. Hold means press and hold for 2 seconds. Tap once on L or R plays or pauses. Double tap L is previous and double tap R is next. Hold R raises and hold L lowers the volume. A call is answered with one tap and ended or rejected with a 2 second hold.

Remappable controls

Yes6Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 20268Reviewtomsguide.com/reviews/bose-quietcomfort-earbuds-2Read 10 October 2026

Yes3Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Section 8.0: most of the controls can be customized in the TOZO app.

Voice assistant

Google Assistant, Siri, Bixby8Reviewtomsguide.com/reviews/bose-quietcomfort-earbuds-2Read 10 October 2026Google Assistant, Siri and Bixby all work with the earbuds.

Voice assistant3Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Section 5.0: triple-tap the earbud to wake the voice assistant with a beep. No assistant is named.

Sensors and health

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In-ear detection

Yes6Reviewexpertreviews.co.uk/bose/1417760/bose-quietcomfort-earbuds-ii-reviewRead 10 October 2026The app can pause playback when a bud is removed and answer calls when a bud is inserted.7Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 20269Retailer pagegreentoe.com/product/Bose_QuietComfort_Earbuds_II_Noise-Canceling_True_Wireless_In-Ear_Headphones__Triple_870730-0010Read 10 October 2026

Not available

Sensors

Not available

Not available

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Not available

Not available

Hearing protectioniLimits sudden loud sounds

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026ActiveSense reduces loud disruptions in Aware Mode for as long as they last.

Not available

Health features

Not available

Not available

Fit and durability

4 of 7 differ

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

S, M, L1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Fit Kit supplies three sizes of ear tips and three sizes of stability bands. Sizes S, M and L from the B&H box contents.5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 2026Three sizes of ear tips and three stability bands as standard.

Not available

Ear tip materials

Silicone1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026

Silicone5Retailer pagebestbuy.com/product/tozo-a1-wireless-earbuds-bluetooth-5-3-lightweight-ipx5-2-mic-ai-calls-premium-sound-bass-32-eqs-charging-case-black/CZT87XXGG7Read 21 October 2026Maker account answer in the Q and A: the A1 set includes three spare silicone ear tips in three different sizes. The sizes are not named, so no ear tip sizes are stored.10Reviewnerdtechy.com/tozo-a1-reviewRead 15 October 2026Review: silicone ear tips. The maker answer on Best Buy also says silicone ear tips.

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

Stability bands1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026Separate stability bands that hug the contour of the ear, with an umbrella-shaped silicone ear tip.5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 2026

Not available

Ear tip fit test

Yes1Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 20265Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 2026

Not available

Dust and water rating, buds

IPX41Press releasebose.com/pressroom/quietcomfort-earbuds-iiRead 10 October 2026IPX4 rating for sweat and water resistance.4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026

IPX51Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Water resistance - earphone: IPX5. No rating is stated for the case.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

2 of 6 differ

Companion app

Bose Music4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026Bose Music app for iOS and Android, used for updates, EQ and ANC settings.

TOZO app1Maker product pagetozostore.com/products/a1Read 15 October 2026The TOZO app has 32 preset EQs and access to over 2,000 personalized EQs shared by other users. No app platform list is stated on the page.

App platforms

Android, iOS4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026

iOS, Android3Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Section 9.0 shows the App Store and Google Play badges.

User firmware updates

Yes4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026

Yes3Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Section 8.0: the earbuds firmware can be updated in the app.

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

2 of 4 differ

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

6.2g(0.2 oz)4Reviewsoundguys.com/bose-quietcomfort-earbuds-ii-review-78772Read 10 October 2026Spec box lists 6.24 g per earbud. What Hi-Fi? and Reviewed state 6.2 g. Stored 6.2 g.5Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-iiRead 10 October 2026Tech specs list 6.2 g each.7Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 2026Specs list 6.2 grams per earbud.

3.7g(0.1 oz)1Maker product pagetozostore.com/products/a1Read 15 October 2026Tech specs row Weight (each ear): 3.7 g plus or minus 0.2 g.

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

Not available

Not available

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

59.8g(2.1 oz)7Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 2026Specs list 59.8 grams for the charging case. Tom's Guide lists 2.1 oz.

Not available

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

Not available

Not available

Certifications

1 of 3 differ

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

Not available

Not available

Communication certifications

Not available

FCC Part 15, ISED licence-exempt RSS, CE RED 2014/53/EU, ANATEL 0034822131433Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Sections 11.0 to 13.0: FCC Part 15 statement, ISED licence-exempt RSS statement and CE-DOC under Directive 2014/53/EU. No FCC ID is printed in the manual.4Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026Item details External Testing Certification: ANATEL 003482213143, model A1 (Brazil).

FCC IDs

Not available

2ASWH-A1-19E, 2ASWH-A1-AB6Regulatory filingfccid.io/2ASWH-A1-19ERead 21 October 2026Two FCC grants to Shenzhen Worgo Technology Limited (the TOZO maker, grantee code 2ASWH), both for trade mark TOZO, model A1: 2ASWH-A1-19E (granted 2026-06-02, light buds in the photos, Classic Bluetooth GFSK, pi/4 DQPSK and 8DPSK) and 2ASWH-A1-AB (filed 2026-06-04, black buds in the photos, same model and radio). The 19E filing photos show earbud cells labelled ST 501012, 3.7V, 0.15Wh, about 40 mAh, which fits the 40 mAh store figure. Grants for the 2021 and 2023 hardware were not found under this grantee, so these IDs describe the current A1 hardware only. The mapping of each ID to a colour is not stated.7Regulatory filingfccid.io/2ASWH-A1-ABRead 21 October 2026Second filing, ID 2ASWH-A1-AB, model A1, test report DLE-260424034R. Same note as the 2ASWH-A1-19E filing.

Other certifications

Not available

Not available

In the box

2 of 2 differ

In the box

Bose QuietComfort Earbuds II, Charging case, USB-C to USB-A cable, 3 pairs of silicone ear tips (S, M, L), 3 pairs of stability bands (S, M, L)7Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 20269Retailer pagegreentoe.com/product/Bose_QuietComfort_Earbuds_II_Noise-Canceling_True_Wireless_In-Ear_Headphones__Triple_870730-0010Read 10 October 2026

TOZO A1 Mini wireless earbuds, Charging case, Silicone ear tips, USB-A to USB-C charging cable, User manual4Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026What is in the box: Charging Case, Eartip, TOZO A1 Mini Wireless Earbuds, USB-C (A to C) cable, User Manual. The cable length is printed as 20 cm here while TOZO prints 20 inches for its Open EarRing box, so no length is stored.10Reviewnerdtechy.com/tozo-a1-reviewRead 15 October 2026Review: a charging case, two earbuds, a USB-C charging cable and silicone tips. Amazon listing (the maker brand store) adds the user manual.

Cables included

ABose QuietComfort Earbuds II

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

Source7Reviewreviewed.com/headphones/content/bose-quietcomfort-ii-earbuds-reviewRead 10 October 2026A 12-inch USB-C to USB-A charge cable is included.

BTOZO A1

Type	Count
USB-A to USB-C	1

Source4Retailer pageamazon.com/dp/B09N3RYJ66Read 21 October 2026What is in the box: USB-C (A to C) cable. Length not stored because of the cm and inch mismatch noted under in_the_box.

Links

Not compared

Product page

support.bose.co.uk/product/bose-quietcomfort-earbuds-ii/01t8c00000OydAFAAZ2Maker product pagesupport.bose.co.uk/product/bose-quietcomfort-earbuds-ii/01t8c00000OydAFAAZRead 10 October 2026Bose support page for the product. Its specification content is script-rendered and could not be read, so no specification is cited from it.

www.tozostore.com/products/a11Maker product pagetozostore.com/products/a1Read 15 October 2026TOZO official store page, titled TOZO A1 Mini Wireless Earbuds.

Spec sheet

Not available

Not available

Manual

Not available

s3-us.tozostore.com/tozo/pdfRenderer/web/index.html3Owner's manuals3-us.tozostore.com/tozo/pdfRenderer/web/index.htmlRead 21 October 2026Manual listed on the TOZO manuals page for the A1 (PDF created 2024-08-24, six languages). The text is outlined, so it was read from page images. The same gestures and app text appear in the A1 2024 manual that Amazon hosts.

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

0 of 1 differ

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.

1year9Retailer pagegreentoe.com/product/Bose_QuietComfort_Earbuds_II_Noise-Canceling_True_Wireless_In-Ear_Headphones__Triple_870730-0010Read 10 October 2026Limited 1-Year Warranty on the US listing. A Belgian retailer lists 2 years for its market.

1year2Maker product pagetozostore.com/pages/warranty-policyRead 21 October 2026TOZO US warranty policy: one-year limited warranty against manufacturing defects from the date of purchase. The store banner says 12+6 months and the A1 quick guide offers an 18-month extended warranty when the product is registered within 14 days. The 12-month base term is stored.

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