Earbuds / Compare

JBL Tune 230NC TWS vs TOZO A1

A

Product A: JBL

Tune 230NC TWS

70 of 166 known

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B

Product B: TOZO

A1

51 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

AJBL Tune 230NC TWS

BTOZO A1

General

4 of 8 differ

Series

Tune1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026JBL Tune range. The page sits under true wireless earbuds.

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.

TUNE230NCTWS, JBLT230NCTWSBAM, JBLT230NCTWSUAM, JBLT230NCTWSWAM, JBLTUNE230NCTWSWAM1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Page item number JBLT230NCTWSBAM for Black. The White and Blue codes are in the US retailer data and the multilingual quick start guide gives the model TUNE230NCTWS. The Amazon US listing uses JBLTUNE230NCTWSWAM for White.5Retailer pageamazon.com/dp/B09FMS2QYDRead 23 October 2026Live Amazon US listing for the White earbuds: model number JBLTUNE230NCTWSWAM, manufacturer part number the same. It lists 40 hours, a 750 mAh case battery and Bluetooth 5.2.6Retailer pagegreentoe.com/product/JBL_Tune_230NC_Noise-Canceling_True_Wireless_In-Ear_Headphones__White__JBLT230NCTWSWAMRead 23 October 2026Lists JBLT230NCTWSWAM for White. The Blue code JBLT230NCTWSUAM comes from the Greentoe Blue listing.12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026Review lists JBLT230NCTWSBAM, JBLT230NCTWSUAM and JBLT230NCTWSWAM.

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

0500363845686Retailer pagegreentoe.com/product/JBL_Tune_230NC_Noise-Canceling_True_Wireless_In-Ear_Headphones__White__JBLT230NCTWSWAMRead 23 October 2026UPC 050036384568 for the White JBLT230NCTWSWAM. The retailer data matches the JBL quick start guide values for weight, batteries and playtime.

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.

Not available

Not available

Status

Available1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026The JBL US page says sold out and not currently available on 23 Oct 2026. Amazon US sells it at 94 USD. No source says it is discontinued.

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.

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.

$99.951Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Page: 99.95 USD each for the Black earbuds. The archived page of 29 Nov 2021 shows the same price with a New label. Amazon US sold it at 69.99 USD in May 2022 and 94 USD in Oct 2026.3Maker product pageweb.archive.org/web/20211129090142/https://www.jbl.com/wireless-earbuds/TUNE230NCTWS-.htmlRead 23 October 2026Archived JBL US page of 29 Nov 2021, the earliest capture: 99.95 USD each, Black, Blue and White variations and a New label.12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026Review spec table: 99.95 USD original MSRP.

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.

US1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026US store.

Not available

ColoursiThe maker's own colour names

Black, Blue, White, Sand9Measurementrtings.com/headphones/reviews/jbl/tune-230nc-tws-true-wirelessRead 23 October 2026Review: four colour variants Black, Blue, Sand and White. The JBL US page lists Black, Blue and White.

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

Not available

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-ear9Measurementrtings.com/headphones/reviews/jbl/tune-230nc-tws-true-wirelessRead 23 October 2026Review header: type In-ear. Tested with methodology v1.5, Black unit. Review updated 27 Jun 2023, published 21 Dec 2021.

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.

Stem1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Page: stick form factor. RTINGS calls it an ear stem design.9Measurementrtings.com/headphones/reviews/jbl/tune-230nc-tws-true-wirelessRead 23 October 2026Review text: wallet-friendly in-ears with a stem design.

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 bud2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Page 8 Dual Connect + Sync shows stereo mode with both earbuds and mono mode with a single L/R earbud.

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

4 of 17 differ

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

AJBL Tune 230NC TWS

Type	Diameter (mm)	Count per earbud
Dynamic	6	1

Source1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: driver size 6 mm. The features text says 6.0mm drivers. One driver per earbud is the normal layout and the quick start guide gives one driver size. An old Amazon US listing said 10mm drivers and 5 mics, which JBL does not say.

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.

Dynamic1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026The quick start guide tech spec says dynamic driver.

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.

6mm=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.

1=CalculatedFrom Drivers per bud

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.

Min20 HzMax20 kHz1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: dynamic frequency response range 20 Hz to 20 kHz.

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

16Ω1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: 16 ohm.

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.

105dB1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: driver sensitivity at 1 kHz / 1 mW 105 dB.

Not available

Sensitivity reference

Per 1 mW1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026The label says 1 mW.

Not available

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

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

Not available

Not available

Personalised soundiA profile from a hearing test or ear scan

Not available

Not available

Onboard EQ

Not available

Not available

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

102Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Do more with the app: EQ screen with ten frequency points from 32 Hz to 16 kHz and presets. Delamar names a 10-band EQ.

Not available

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

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

None of 2 known

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

Not available

Not available

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

Not available

Not available

Noise cancelling

4 of 11 differ

Active noise cancelling

Yes1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: Noise Cancelling Yes.

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.

Not available

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.

21Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Features text: Active Noise Cancelling technology with 2 microphones. Fonearena says two of the four microphones are used for ANC.

Not available

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

Yes1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: Noise Cancelling Type Adaptive Noise Cancelling.

Not available

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

Not available

Not available

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

Not available

Not available

Transparency mode

Yes1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Features text: Ambient Aware and TalkThru.

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.

Not available

Not available

Conversation detection

Not available

Not available

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

Not available

Not available

Measured

4 of 23 differ

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

Against the SoundGuys house curve, which follows the Harman target, bass is boosted slightly more than the target and mids are somewhat underemphasised. The treble result is not given in text.12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026SoundGuys frequency response test on a test head. The response chart did not load, so only the written summary is used and no numeric bass or treble amounts are stored.

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

Voices are intelligible in ideal conditions with sibilance from emphasised treble. Office noise is filtered less well but the voice still comes through. Street noise is handled well, with the start of an outside noise audible before it is filtered.12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026SoundGuys microphone demonstrations. It scores the microphone 6.5 out of 10.

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.

AJBL Tune 230NC TWS

ANC	Hours (h)
Yes	8.42
Yes	7.5
Not available	8.7

Source9Measurementrtings.com/headphones/reviews/jbl/tune-230nc-tws-true-wirelessRead 23 October 2026Public verdict: 8.7-hour continuous playback, with an additional three charges in the case. ANC state, codec and volume are not stated in the public text. Numeric result tables are members only and were not read.10Reviewdigit.in/reviews/audio-video/jbl-tune-230nc-review-308847.htmlRead 23 October 2026Review of 1 Aug 2023: about 7.5 hours with ANC on at 50 percent volume and about one hour more with ANC off. Codec and firmware are not stated.12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026SoundGuys lab test: 8 hours 25 minutes with ANC on, continuous music at a 75 dB SPL maximum output measured at the eardrum of a test head. Codec and firmware are not stated.

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.

8.7h=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

5 of 7 differ

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

41Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: Number of Microphones 4. The features text says 4 mics for calls.

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.

41Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs list 4 microphones in total. Fonearena says 2 per earbud for calls with two of them used for ANC, so shared microphones count once.

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

Not available

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.

Yes2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Controls page: hold for 2 s toggles a crossed microphone icon next to the call icons.

Not available

SidetoneiHear your own voice in calls

Yes1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Features text: VoiceAware controls how much of the microphone input is routed back into the earbuds.

Not available

Connectivity

4 of 18 differ

Chip

Not available

Not available

Connections

Bluetooth1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs list Bluetooth version, profiles and frequency only. No other connection is listed.

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

Bluetooth

5.21Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: Bluetooth version 5.2.

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, AAC12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026Review: SBC and AAC only, no aptX or other codecs.

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

Bluetooth profiles

A2DP, AVRCP, HFP1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: A2DP 1.3, AVRCP 1.6, HFP 1.7. Versions are not stored.

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.

No9Measurementrtings.com/headphones/reviews/jbl/tune-230nc-tws-true-wirelessRead 23 October 2026The Live Pro 2 comparison names multi-device pairing for up to two devices as an advantage over the Tune 230NC. JBL does not state multipoint for the Tune 230NC.12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026Review: multipoint is not supported.

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)

10m8Retailer pageflipkart.com/jbl-tune-230nc-tws-active-noise-cancellation-40hr-playtime-app-speed-charge-bluetooth/p/itm7119ce12c94ceRead 23 October 2026Flipkart India specifications: Bluetooth range 10 m. The page lists 750 mAh and the same Bluetooth profiles. JBL does not state a range.

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, iOS2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026App page shows Google Play and App Store badges.

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.

Not available

Not available

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

AJBL Tune 230NC TWS

Feature	Needs
Active noise cancelling, Ambient Aware and TalkThru on the earbuds	Advanced controls are enabled by connecting the earbuds to the JBL Headphones app.
Voice assistant on the earbuds	Enable the voice assistant in the JBL Headphones app and assign it to the left or right earbud. The app marks Google Assistant as only available on Android.

Source2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Controls page footnotes: enable advanced controls by connecting to the JBL Headphones app, and enable the voice assistant in the app and assign it to the preferred earbud.

BTOZO A1

Not available

Official licence

Not available

Not available

Battery and charging

11 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.

70mAh2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Tech spec: earbud battery type lithium-ion polymer 70 mAh at 3.85 V. Greentoe lists the same.

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.

AJBL Tune 230NC TWS

Mode	Includes case recharges	Hours (h)
ANC off	No	10
ANC off	Yes	40
ANC on	No	8
ANC on	Yes	32

Source1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: maximum music play time 10 h with ANC off and 8 h with ANC on, maximum play time 40 h. Greentoe and Fonearena list 30 h extra from the case with ANC off and 24 h extra with ANC on, so the ANC on total with the case is 8 + 24 = 32 h. JBL states no codec, volume or ANC state for the 40 h total, and the retailer data matches ANC off.7Press articlefonearena.com/blog/363047/jbl-tune-230nc-jbl-130nc-price-india-features.htmlRead 23 October 2026India launch article of 3 May 2022: 10 hours with ANC off and 8 hours with ANC on. With the case 40 hours total, 30 hours with ANC off and 24 hours with ANC on from the case. JBL's own pages state only the 40 hours.

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.

10h=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.

8h=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.

10h=CalculatedFrom Claimed battery life

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.

40h=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.

32h=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.

Not available

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.

JBL lists a charging time of 2 hours from empty and does not say whether it is the earbuds, the case or both. The power supply is 5 V 1 A.2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Tech spec: power supply 5 V 1 A and charging time 2 hrs from empty. The charging page shows a USB-C cable to the case and a 2 hr charge symbol without naming earbuds or case.

Not available

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

10min2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Charging page: 10 min of charging equals up to 2 hr of music.

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.

2h2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Up to 2 hours of music from 10 minutes of charging. ANC state and whether it is earbuds only are not stated, but the diagram shows the earbuds in the case. Delamar says the feature list also names 5 minutes for 1 hour.

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.

750mAh2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Tech spec: charging case battery lithium-ion polymer 750 mAh at 3.7 V.

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-C2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Charging page: USB-C cable plugged into the case.

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.

Not available

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

Wireless charging

No6Retailer pagegreentoe.com/product/JBL_Tune_230NC_Noise-Canceling_True_Wireless_In-Ear_Headphones__White__JBLT230NCTWSWAMRead 23 October 2026Retailer data: no wireless charging. The case has a USB Type-C input.

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

3 of 5 differ

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

Touch2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Controls page 9: tap and hold gestures on both earbuds. JBL's spec table lists Touch Control Yes.

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.

Not available

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

Left earbud single tap: switch between ANC, Ambient Aware and off, Left earbud double tap: TalkThru, Right earbud single tap: play or pause, Right earbud double tap: next track, Right earbud triple tap: previous track, Either earbud double tap: answer or end a call, Either earbud hold for 2 seconds during a call: mute or unmute the microphone, Either earbud hold for 2 seconds: voice assistant2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Controls page 9. Left earbud: tap x1 cycles ANC, Ambient Aware and off, tap x2 TalkThru, tap x2 call answer or end, hold for 2 s mutes or unmutes the microphone, and hold for 2 s calls the voice assistant. Right earbud: tap x1 play or pause, tap x2 next track, tap x3 previous track, and the same call, microphone and voice assistant gestures. ANC, Ambient Aware and TalkThru need the app.

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

Yes2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Do more with the app, page 11: the Gestures screen assigns functions to the left and right earbud.

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, Amazon Alexa, Bixby, Siri2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Controls page: Ok Google and Alexa built-in under voice assistants, and Bixby, Siri or others. App page: set up Google Assistant (Android only) or Amazon Alexa.

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

None of 9 known

In-ear detection

Not available

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

Not available

Not available

Health features

Not available

Not available

Fit and durability

3 of 7 differ

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

S, M, L2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026In the box page shows eartips marked S / M / L.

Not available

Ear tip materials

Silicone12Measurementsoundguys.com/jbl-tune-230nc-tws-review-64754Read 23 October 2026Review: three silicone ear tip sizes.

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.

Not available

Not available

Ear tip fit test

Yes1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Page text: the JBL Headphones app lets you check your best fit.

Not available

Dust and water rating, buds

IPX41Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: IP Code IPX4.

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

3 of 6 differ

Companion app

JBL Headphones1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Page text: free JBL Headphones app for EQ, ANC and ambient controls and touch customization.

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, iOS2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026App page shows Google Play and App Store badges.

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

Not available

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.

5.1g(0.2 oz)2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Tech spec: earbud 5.1 g per piece (10.2 g combined). The JBL web page shows 10.2 g for the earpiece, which is the pair. Greentoe lists 5.1 g 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.

47.3g(1.7 oz)1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Specs: charging case weight 47.3 g.

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

APIJBLT230NT11Regulatory filingfccid.io/APIJBLT230NTRead 23 October 2026FCC ID APIJBLT230NT, Bluetooth headset, Harman International Industries, filed 17 Aug 2021. A text search of the filing documents for TUNE230NCTWS returns this ID. The record was read in Chrome.

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

JBL Tune 230NC TWS earbuds, Charging case, USB Type-C charging cable, 3 sizes of eartips, Quick Start Guide / Safety Sheet, Warranty / Warning1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026Box contents tab: earbuds, USB Type-C charging cable, 3 sizes of eartips, charging case, Quick Start Guide / Safety Sheet, Warranty / Warning.

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

AJBL Tune 230NC TWS

Type	Count
USB Type-C charging cable	1

Source1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026One USB Type-C charging cable. Length not stated.

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

www.jbl.com/TUNE230NCTWS-.html1Maker product pagejbl.com/TUNE230NCTWS-.htmlRead 23 October 2026JBL US product page, read in Chrome. Item number JBLT230NCTWSBAM for Black.

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

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdf2Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw8eb6354f/pdfs/JBL_TUNE%20230NC%20TWS_QSG_Multilingual.pdfRead 23 October 2026Multilingual quick start guide, 36 pages, read in Chrome.

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.

1year6Retailer pagegreentoe.com/product/JBL_Tune_230NC_Noise-Canceling_True_Wireless_In-Ear_Headphones__White__JBLT230NCTWSWAMRead 23 October 2026Limited 1-year manufacturer warranty in the US. Amazon US also says 1 year manufacturer.

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.