Earbuds / Compare
CMF Buds Pro 2 vs JBL Tune Flex 2
Product A: CMF
78 of 166 known
Change CMF Buds Pro 2
Product B: JBL
81 of 166 known
Change JBL Tune Flex 2
74 of 157 fields differ
- 33 different values
- 41 known for one only
- 20 the same
- 63 missing for both
Biggest differences
Each bar uses the scale of all 138 earbuds.
- Playback per charge with ANC (claimed)A: 6.5hB: 8hJBL is 1.5 h higher.
- Total with case and ANC (claimed)A: 26hB: 32hJBL is 6 h higher.
- With caseA: 43hB: 48hJBL is 5 h higher.
Size, drawn to scale
Front and side.
- ACMF: 20.2 × 33.1 mm
- BJBL: 20.3 × 34.6 mm
Weight
0 to 80 g
Weight per bud
A4.9g
B4.4g
Case weight
A46g
B32.9g
All 166 fields
Every value links to where we found it.


General
4 of 8 differ
Model numbers
69744342259301Maker product pagecheckout-us.nothing.tech/products/cmf-buds-pro-2.jsRead 8 October 2026Exact current manufacturer sales SKU is 6974434225930, also its GTIN. The physical revision code is not proven for this sales SKU. Original guide B172, a 2025 declaration B187, and currently linked B195 declarations are not silently mapped to it.9Maker spec sheet (PDF)cdn.shopify.com/s/files/1/0376/5420/0459/files/CMF_Buds_Pro_2_EU_DoC_Multilingual.pdfRead 8 October 2026Current family-linked declaration prints B195, software V1.0.1.33, signed August 17, 2026. Family PSTI likewise prints B195. A 2025 declaration prints B187, while the downloadable user guide prints B172. None supplies an exact bridge to the selected current US sales SKU, so physical model-code mapping and revision-specific certifications remain unknown.
GTIN / EAN
Announced
Not available
Not available
Status
Predecessor
Not available
Successor
Not available
Not available
Launch price (EU)
Not available
Not available
Markets
US, IN1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Harman India launch of the Tune Series 2. Prices were published in rupees. Sales started on JBL's website and in major retail stores.17Maker product pageweb.archive.org/web/20250409230507/https://www.jbl.com/earbuds/TUNE-FLEX-2.htmlRead 21 October 2026JBL US store lists the Black model JBLTFLEX2BLKAM in USD.
Colours
Orange, Dark Grey, Light Grey, Blue1Maker product pagecheckout-us.nothing.tech/products/cmf-buds-pro-2.jsRead 8 October 2026
Segment
Music4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: Pure Bass sound for music, calls and movies. JBL files the Tune line as everyday listening.16Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 21 October 2026JBL support page, General Specifications: Activity Leisure. No sport or gaming line applies.
Design
1 of 4 differ
Form factor
Bud shape
Use one bud alone
Not available
RGB lighting
Not available
Not available
Drivers and sound
14 of 17 differ
Drivers per bud
ACMF Buds Pro 2
| Role | Diameter (mm) | Count per earbud |
|---|---|---|
| Woofer | 11 | 1 |
| Tweeter | 6 | 1 |
BJBL Tune Flex 2
| Type | Diameter (mm) | Count per earbud |
|---|---|---|
| Dynamic | 12 | 1 |
Source1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Harman India release, published 2025-04-07: Tune Flex 2 is an open-type stick design with larger 12mm drivers. The driver count is not stated here.2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Technical Specifications copy of the JBL spec sheet: 12 mm / 0.47 inch dynamic driver. A single driver per bud is the reading of that line and of SoundGuys, which lists one driver.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Driver size 12 mm / 0.47 in Dynamic Driver. One driver per earbud is the reading of the singular line.
Driver type
Not available
Dynamic1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release names 12mm drivers. The dynamic type comes from the spec sheet copy at Creative Audio.2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 202614Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Dynamic Driver.
Driver size
11mm
12mm
Drivers per bud
2
1
Diaphragm material
11 mm bass driver: PU + PET, titanium-coated. 6 mm micro-planar tweeter: PET + titanium-coated PET.2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current Sound table publishes two diaphragm descriptions alongside the two named driver rows. Material text retains their bass/tweeter order and the exact micro-planar description. No original-review driver architecture is imported.
Not available
Frequency response
Min20 HzMax20 kHz2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: 20 Hz - 20 kHz. No tolerance or conditions are given here.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 2026Bangladesh retailer spec table repeats the JBL values: 20 Hz - 20 kHz, 13 ohms, 98 dB SPL@1 kHz.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: 20 Hz - 20 kHz. No conditions are stated.
Impedance
Not available
13Ω2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: 13 ohm.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 202614Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: 13 ohm.
Sensitivity
Not available
98dB7Retailer pageeuronics.ie/products/jbl-tune-flex-2-true-wireless-noise-cancelling-open-stick-earbuds-turquoise-jbltflex2tqeRead 20 October 2026Spec table: sensitivity 98 dB SPL @ 1 kHz, impedance 13 ohm, frequency response 20 Hz - 20 kHz, 6 microphones, IP54 earbuds only. The 1 mW reference comes from Hifiverse.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Sensitivity 98 dB SPL@1 kHz. The JBL support page states it at 1 kHz and 1 mW.16Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 21 October 2026JBL support page, Audio Specifications: Driver sensitivity at 1kHz/1mW (dB) 98.
Sensitivity reference
Not available
Per 1 mW9Spec databasehifiverse.io/components/headphones-extra/headphones/tune-flex-2Read 20 October 2026Specifications table: sensitivity 98 dB SPL at 1 kHz / 1 mW, with 13 ohm impedance.16Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 21 October 2026JBL support page, Audio Specifications: Driver sensitivity at 1kHz/1mW (dB) 98.
Max sample rate
Not available
Max bit depth
Not available
Adaptive EQ
Not available
Not available
Onboard EQ
Not available
Yes14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 202619Maker product pageplay.google.com/store/apps/detailsRead 21 October 2026Google Play listing of the JBL Headphones app by Harman Consumer, Inc.: TUNE FLEX 2 is a supported model, and EQ Settings gives predefined presets and custom settings. A Czech review says the Tune Flex 2 has six presets plus a custom curve. The preset names and the band count are not stated for this model.
EQ presets
Not available
Not available
Volume limit
Not available
Not available
Spatial audio
1 of 2 differ
Spatial audio
JBL Spatial Sound4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: JBL Spatial Sound transforms stereo sound from any source or device into a more immersive experience. No head tracking is stated.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026
Head tracking
Not available
Not available
Noise cancelling
4 of 11 differ
Active noise cancelling
Yes1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release: Adaptive Noise Cancelling technology. How it adapts is not explained.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026
ANC type
Not available
ANC microphones in both earbuds
Not available
Not available
Adaptive ANC
Yes14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Features: Adaptive Noise Cancelling. The sheet does not say what it adapts to. The JBL support page lists the type as Adaptive Noise Canceling.16Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 21 October 2026General Specifications: Noise Cancelling Type Adaptive Noise Canceling.
ANC levels
Not available
Not available
ANC attenuation (claimed)
Not available
Transparency mode
Yes4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: Ambient Aware and TalkThru, part of Smart Ambient.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026
Adjustable transparency
Not available
Automatic ANC and transparency blend
Not available
Not available
Conversation detection
Not available
Not available
Wind noise reduction
Not available
Measured
4 of 23 differ
Frequency response notes (measured)
Bass is raised by about 12 to 15 dB between 20 and 400 Hz and peaks near 50 Hz. The treble from 5 to 20 kHz shows several peaks and dips.12Reviewsoundguys.com/cmf-buds-pro-2-review-big-features-small-price-smart-dial-123206Read 10 October 2026Objective Measurements section against the SoundGuys house curve, original 2024 review sample. Bass boost 20 to 400 Hz and treble variation 5 to 20 kHz are quoted from the text. No dB target values are stored.
Not available
Bass amount (measured)
Not available
Not available
Treble amount (measured)
Not available
Not available
Deviation from target (measured)
Not available
Not available
Consistency between fittings (measured)
Not available
Not available
Harmonic distortion (measured)
Not available
Not available
Sound leakage (measured)
Not available
Not available
Noise isolation (measured)
Not available
Not available
Noise isolation, best (measured)
Not available
Not available
Passive isolation (measured)
Not available
Not available
Call quality notes (measured)
Recorded speech samples cover ideal, office, street, windy and reverberant conditions. Voices sound slightly muffled. Background noise reduction is very good, especially in wind.12Reviewsoundguys.com/cmf-buds-pro-2-review-big-features-small-price-smart-dial-123206Read 10 October 2026Microphone section and demos recorded by SoundGuys on the original 2024 sample. Office, street, windy and reverberant demos were listened to as described by the reviewer.
Not available
Mic low-frequency extension (measured)
Not available
Not available
Mic high-frequency extension (measured)
Not available
Not available
Mic speech-to-noise ratio (measured)
Not available
Not available
Latency (measured)
Not available
Not available
Bluetooth latency, worst (measured)
Not available
Not available
2.4 GHz latency, worst (measured)
Not available
Not available
Latency in game mode (measured)
Not available
Not available
Battery life (measured)
BJBL Tune Flex 2
Not availableLongest tested use per charge
6.25h
Not available
Battery life with case (measured)
Not available
Not available
Full charge time (measured)
Not available
Not available
Weight per bud (measured)
Not available
Not available
Microphones and calls
4 of 7 differ
Voice microphones in both earbuds
44Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: two beamforming outer mics on each earbud pick up your voice. That is 4 voice microphones across the pair.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Features: two beamforming outer mics on each earbud pick up your voice, which is 4 voice microphones across the pair.
All microphones in both earbuds
61Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release: six microphones.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: 6 mics. Two beamforming outer mics and one inner mic on each earbud.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Features: two beamforming outer mics and one inner mic on each earbud, 6 in all. The marketing line says 6 mics.
Bone conduction voice sensor
Not available
Not available
Mic noise reduction
Call audio bandwidth
Not available
Not available
Mic mute control
Not available
Connectivity
5 of 18 differ
Chip
Not available
Connections
Bluetooth
5.32Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 20263Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 202614Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026
Bluetooth codecs
Not available
Bluetooth profiles
Not available
LE Audio
Not available
Auracast
Not available
Not available
Multipoint
Yes1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release: Multi-Point Connection.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: Multi-Point Connection lets you switch from one Bluetooth device to another.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 202615Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf8af14f6/pdfs/LS_JBL_Tune%20Flex%202_QSG_Multilingual.pdfRead 21 October 2026Multi-point connection page: maximum 2 devices.
Multipoint devices
210Spec databasetest-aankoop.be/hightech/koptelefoons-en-oortjes/vergelijker/jbl-tune-flex-2/278/116529Read 20 October 2026Spec list: Bluetooth multipoint yes, connects to 2 devices at once. The same list shows AAC as not supported, which conflicts with two German databases that list AAC and SBC, so codecs are not stored. The measured results are for members only and were not read.15Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf8af14f6/pdfs/LS_JBL_Tune%20Flex%202_QSG_Multilingual.pdfRead 21 October 2026Multi-point connection page: maximum 2 devices.
Multipoint with LDAC
Not available
Not available
Paired devices remembered
Not available
Not available
Automatic switching between own devices
Not available
Not available
Fast pairing
Google Fast Pair, Microsoft Swift Pair2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026
Google Fast Pair, Microsoft Swift Pair1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release: Multi-Point Connection and Google Fast Pair.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 202614Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 202615Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf8af14f6/pdfs/LS_JBL_Tune%20Flex%202_QSG_Multilingual.pdfRead 21 October 2026Power on and connect page: Android devices linked to a Google account (Fast Pair, Android 6+) and Microsoft Swift Pair on Windows 10 v1803+.
Audio sharing
Not available
Not available
Wireless range (claimed)
Not available
Not available
Wireless receiver
Not available
Not available
Receiver connector
Not available
Not available
Simultaneous 2.4 GHz and Bluetooth audio
Not available
Not available
Latency
2 of 3 differ
Low latency mode
Yes14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Features, JBL headphones app: adapt the sound output to audio or video to get the most out of your content.16Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 21 October 2026FAQ Improving Lipsync Performance with App Compatible Headphones: switch the Smart Audio & Video setting to Video Mode.19Maker product pageplay.google.com/store/apps/detailsRead 21 October 2026Listing: Smart Audio & Video setting, available on specific models. The JBL FAQ says Video mode lowers latency by 100 ms. The Tune Flex 2 spec sheet says the app can adapt the sound output to audio or video.
Claimed latency
ACMF Buds Pro 2
| Connection | Mode | Latency (ms) |
|---|---|---|
| Bluetooth | Low Lag Mode with a Nothing phone | 120 |
BJBL Tune Flex 2
Not availableLowest claimed latency
120ms
Not available
Compatibility
3 of 4 differ
Platforms
Connection per platform
ACMF Buds Pro 2
| Platform | Connection |
|---|---|
| Android | Bluetooth |
| iOS | Bluetooth |
BJBL Tune Flex 2
| Platform | Connection |
|---|---|
| Android | Bluetooth |
| iOS | Bluetooth |
| Windows | Bluetooth |
Features that need a specific device
ACMF Buds Pro 2
| Feature | Needs |
|---|---|
| Android and iOS compatibility | Current listing specifies Android 6.0 or above and iOS 13 or above. Some older family FAQ wording says Android 5.0. |
| LDAC audio | Use a compatible LDAC source and enable high-quality audio in Nothing X. Up to 24-bit/96 kHz is a codec claim, not lossless playback. Current physical-revision support for simultaneous LDAC and Dual Connection or Dirac is not established. |
| Spatial Audio Effect | Enable HRTF spatial processing in Nothing X. No specific source format or dynamic head tracking is claimed. |
| Smart Dial on the case | Configure the case dial in Nothing X. It supports volume, playback, noise-mode, voice-assistant, low-lag and mic-mute commands. Case-only mute does not establish on-ear microphone mute. |
| Earbud volume controls | Assign double tap and hold in Nothing X Controls. Hold after the double tap to change volume. Case dial rotation is a separate option. |
Source2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current Android minimum is 6.0 and iOS minimum is 13. Generic older FAQ says Android 5.0. Current table is used without claiming all advanced functions operate identically across platforms. Case Smart Dial requires configuration in Nothing X and includes microphone mute. It does not establish an earbud mic mute control.5Maker product pagesupport.nothing.tech/hc/en-us/articles/26468737625489-How-do-I-adjust-the-volume-on-CMF-Buds-Pro-2Read 8 October 20266Maker product pagesupport.nothing.tech/hc/en-us/categories/25890107917585-CMF-Buds-Pro-2Read 8 October 2026Current maker listing independently confirms the same case-dial functions. The support description adds that it has no assigned function by default and must be configured in Nothing X. It does not prove a current physical revision code.
BJBL Tune Flex 2
| Feature | Needs |
|---|---|
| Google Fast Pair | Android phones running Android 6 or later. |
| Microsoft Swift Pair | Windows 10 version 1803 or later. |
| ANC, Ambient Aware and TalkThru controls on the earbuds | Connect the earbuds to the JBL Headphones app to enable the advanced controls. |
| Ear Tip Sound Settings | Set in the JBL Headphones app. |
Official licence
Not available
Not available
Battery and charging
12 of 13 differ
Battery per bud
55mAh2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: earbud lithium-ion battery 55mAh / 3.85V. Rated capacity per earbud.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 2026Spec table: earbud 55mAh / 3.85V and case 545mAh / 3.85V.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Earbud battery type Lithium-ion battery (55mAh / 3.85V).
User-replaceable earbud battery
Not available
Not available
Claimed battery life
ACMF Buds Pro 2
| Mode | Codec | Includes case recharges | Hours (h) |
|---|---|---|---|
| ANC off | AAC | No | 11 |
| ANC off | AAC | Yes | 43 |
| ANC on | AAC | No | 6.5 |
| ANC on | AAC | Yes | 26 |
| Transparency | AAC | No | 6.5 |
| Transparency | AAC | Yes | 26 |
| ANC off | LDAC | No | 6.5 |
| ANC off | LDAC | Yes | 25 |
| ANC on | LDAC | No | 4.3 |
| ANC on | LDAC | Yes | 16.6 |
| Transparency | LDAC | No | 4.3 |
| Transparency | LDAC | Yes | 16.6 |
| Call | Not available | No | 6 |
| Call | Not available | Yes | 25 |
| Call | Not available | No | 4.8 |
| Call | Not available | Yes | 18.6 |
Source2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current battery table states 11 hours earbuds-only and 43 hours with case for ANC off, matching the model-specific FAQ. A page-body sentence instead says ten hours from the 60 mAh earbud. The specified table/FAQ claim is represented with that body conflict explicit, without claiming a rounding method or tested revision.4Maker product pagesupport.nothing.tech/hc/en-us/articles/26468705886993-How-long-is-the-battery-life-of-CMF-Buds-Pro-2Read 8 October 2026Current model-specific FAQ publishes AAC playback off 11/43 h and on/transparency 6.5/26 h, matching the current main listing. It also declares LDAC off 6.5/25 h and on/transparency 4.3/16.6 h. Playback test conditions are 50% volume and 25 C. Exact physical model code, firmware and spatial-processing state are not stated. These are current published maker claims, not measured performance transferred from a historical unit. Call rows are explicitly ANC off: 6 h earbuds only and 25 h including case. The following call rows are ANC on or Transparency: 4.8 h earbuds only and 18.6 h including case. No AAC codec is assigned to calls from a generic playback test footer. Call ANC state is recorded here as required by the table contract.
BJBL Tune Flex 2
| Mode | Includes case recharges | Hours (h) |
|---|---|---|
| ANC on | No | 8 |
| ANC off | No | 12 |
| ANC on | Yes | 32 |
| ANC off | Yes | 48 |
| Call | No | 5 |
Source1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release table for Flex 2: 48 hours playback, 8+24H with ANC on and 12+36H with ANC off. The first number is the earbuds and the second is the case. The totals of 32 h and 48 h are the sums. Spec sheet copy at Creative Audio: up to 12 hours with ANC off, up to 8 hours with ANC on and talk time up to 5 hours with ANC off and 4.5 hours with ANC on. Only the 5 hour call figure is stored. No codec or volume is stated.2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: music playtime with BT on up to 12 hours with ANC off and up to 8 hours with ANC on. Talk time up to 5 hours with ANC off and up to 4.5 hours with ANC on. The 5 hour figure is stored as the call row.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 2026Spec table: ANC off 12 h, ANC on 8 h, talk time ANC off up to 5 h and ANC on up to 4.5 h.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: up to 8 hours of playtime plus three full charges (24 hours) in the case with ANC on, or up to 12 hours plus 36 hours with ANC off. Up to 48 hours total.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: music playtime with BT on up to 12 hrs with ANC off and up to 8 hrs with ANC on. Talk time up to 5 hrs with ANC off and up to 4.5 hrs with ANC on. Features: 8 hours plus three more charges (24 hours) in the case with ANC on, or 12 hours plus 36 hours with ANC off. No codec or volume is stated.
Longest claimed use per charge
11h
12h
Playback per charge with ANC (claimed)
6.5h
8h
Playback per charge without ANC (claimed)
11h
12h
Total with case (claimed)
43h
48h
Total with case and ANC (claimed)
26h
32h
Talk time (claimed)
6h
5h
Full charge time, buds
Not available
Charging guidance
Current maker table claims 60 minutes to fully charge earbuds in the case and 85 minutes for the charging case and earbuds together by USB-C. The historical family page claimed 70 minutes for the combined set. No current empty-case full-charge duration is established. The headline claims up to seven hours after a ten-minute charge, without clearly identifying its earbud-only or case-inclusive scope. It is not assigned to the earbuds-only quick-charge field. A cable is omitted from current new-sale box lists, while transitional retailer stock may still include one. Generic CMF Buds disclaimer figures on the page do not match this Pro 2 table and are not substituted.2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current US table names 85 minutes combined, versus the historical 70-minute family claim. The page also contains generic CMF Buds disclaimer text about 35.5-hour playback, two microphones per bud and other charge times that conflicts with the exact Pro 2 table. Those generic statements are not used as Pro 2 numeric facts. No charger input wattage or case-only duration is inferred.
The spec sheet lists a charging time of 2 hours from empty and does not say whether this covers the earbuds, the case or both.2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: charging time 2 hrs from empty. No scope is given.
Quick charge time
Not available
Earbud playback after quick charge
Not available
Charging case
2 of 10 differ
Case battery
545mAh2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: charging case lithium-ion battery 545mAh / 3.85V. Rated capacity.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 202614Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Charging case battery type Lithium-ion battery (545mAh / 3.85V).
User-replaceable case battery
Not available
Not available
Case charging port
USB-C2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026The box lists a Type-C USB charging cable. The spec sheet lists a 5V 1A power supply.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026The box holds a Type-C USB charging cable. The quick start guide shows the cable plugged into the case.
Case full charge time
Not available
Wireless charging
No8Owner's manualcdn.shopify.com/s/files/1/0585/5258/2321/files/Buds_Pro_2_User_Guide.pdfRead 8 October 2026Charging page describes only a power cable for the case and gives no wireless charging step. This agrees with SoundGuys, which answers No to wireless charging.12Reviewsoundguys.com/cmf-buds-pro-2-review-big-features-small-price-smart-dial-123206Read 10 October 2026FAQ: "No, they do not have wireless charging."
No2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Not listed on the spec sheet copy. Euronics Estonia states no wireless charging.8Retailer pageeuronics.ee/en/audio/headphones/wireless-headphones/jbltflex2wht/jbl-tune-flex-2-white-true-wireless-earbudsRead 20 October 2026Spec table: no wireless charging. The same table says no fast charging, which conflicts with SoundGuys, The maker's quick start guide shows 10 min = 3 h, so quick charge is stored from the maker.
Wireless standards
Not available
Not available
Wireless charging power
Not available
Not available
Speaker in case
Not available
Not available
Screen on case
Not available
Not available
Case works as audio transmitter
Not available
Not available
Controls
3 of 5 differ
Controls
Gestures
Double tap: skip forward, answer/hang up calls, Triple tap: skip back, reject calls, Tap and hold: switch ANC/Transparency2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026
Tap once on the left earbud: switch between ANC and Ambient Aware (needs the JBL Headphones app), Tap twice on the left earbud: TalkThru (needs the JBL Headphones app), Tap once on the right earbud: play or pause, Tap twice on the right earbud: next track, Tap three times on the right earbud: previous track, Tap three times, then hold, on the right earbud: Ear Tip Sound Settings, Tap twice on either earbud during a call: answer or end the call, Hold either earbud for 2 seconds during a call: mute or unmute the microphone, Hold either earbud for 2 seconds: voice assistant, Tap once, then hold for 5 seconds, on either earbud: multi-point connection15Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf8af14f6/pdfs/LS_JBL_Tune%20Flex%202_QSG_Multilingual.pdfRead 21 October 2026Controls page (page 9), read from the icon rows and the tap legend. Footnote: enable advanced controls by connecting the earbuds to the JBL Headphones app. The advanced controls are ANC, Ambient Aware and TalkThru. Ear Tip Sound Settings is the triple tap plus hold row. The multi-point row is on page 8.
Remappable controls
Yes1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release: Personi-Fi 3.0 with gesture controls through the JBL Headphones app.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: the app lets you change how the earbuds behave through gesture customization.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026
Voice assistant
Voice assistant of the connected phone, ChatGPT (CMF and Nothing phones)2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Nothing X app section: "Use Buds Pro 2 to call up ChatGPT from your CMF and Nothing phones." The original user guide lists wake up voice assistant as an optional earbud function without naming an assistant.8Owner's manualcdn.shopify.com/s/files/1/0585/5258/2321/files/Buds_Pro_2_User_Guide.pdfRead 8 October 2026Operations page: optional earbud functions include wake up voice assistant. No named assistant. Applies to the original B172 guide.
Sensors and health
1 of 9 differ
In-ear detection
Not available
Sensors
Not available
Not available
Heart rate sensor
Not available
Not available
Skin temperature sensing
Not available
Not available
Hearing aid feature
Not available
Not available
Medical clearances
Not available
Not available
Hearing test
Not available
Not available
Hearing protection
Not available
Not available
Health features
Not available
Not available
Fit and durability
4 of 7 differ
Ear tips included
S, M, L, Open ear tip (1 size)2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Box list: 3 sizes of ear tips and 1 size of open ear tips. SoundGuys lists the sealing sizes as S, M and L.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: open ear tips plus three sizes of sealing ear tip.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026
Ear tip materials
Not available
Stabilisers
Not available
Not available
Ear tip fit test
Not available
Dust and water rating, buds
IP541Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release: IP54 water and dust resistant earbuds.2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: IP54. The maker copy at Worldwide Stereo says earbuds only.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: IP54 water and dust resistant, earbuds only.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026
Dust and water rating, case
Not available
Not available
Water resistance depth
Not available
Not available
Software
2 of 6 differ
Companion app
JBL Headphones1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release: customisation through the JBL Headphones app.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: the free JBL Headphones app adjusts the ANC level, ambient sound control and gesture customization.
App platforms
User firmware updates
Finding network
Not available
Last location in the app14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Features, JBL headphones app: check your best fit, or find your earbuds. Location detail is on the JBL app page.19Maker product pageplay.google.com/store/apps/detailsRead 21 October 2026JBL spec sheet says the app can find your earbuds. The JBL app page describes Find My Buds as a notification of the last known location and time, plus a ring. It works over Bluetooth, not GPS.
Precision finding
Not available
Not available
Live translation
Not available
Not available
Dimensions and weight
4 of 4 differ
Weight per bud
4.4g(0.2 oz)2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: earbud 4.4 g per piece. The Ghost edition earbud is listed at 4.2 g and is not this product.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 2026Spec table: earbud 4.4 g, charging case 32.9 g.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Earbud 4.4 g per pc (8.8 g combined). The Ghost edition earbud is 4.2 g and is not this product.16Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 21 October 2026JBL support page, Dimensions: Earpiece Weight (g) 4.4. The page also lists total Weight (g) 41.7 and Charging Case Weight (g) 32.9.
Bud dimensions
Width20.2Height33.1Depth23.8mm(0.8 × 1.3 × 0.9 in)2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current Buds design table explicitly labels height 33.1, width 20.2 and depth 23.8 mm. Axis labels are retained without reordering by appearance.
Width20.32Height34.63Depth19.59mm(0.8 × 1.4 × 0.8 in)14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Earbuds dimensions (l x w x d) 34,63 x 20,32 x 19,59 mm. Width and depth are stored as labelled. The length is the stem axis and is stored as height, the remaining axis.
Case weight
32.9g(1.2 oz)2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: charging case 32.9 g. The Ghost edition case is listed at 35.2 g. Euronics Estonia lists 35.2 g for the White model, which conflicts with the 32.9 g of the spec sheet.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 202614Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Charging case 32.9 g. The Ghost edition case is 35.2 g, which explains the Euronics Estonia figure.16Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 21 October 2026JBL support page, Dimensions: Charging Case Weight (g) 32.9.
Case dimensions
Width53.4Height53.4Depth23mm(2.1 × 2.1 × 0.9 in)2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current Case design table explicitly height and width 53.4 mm, depth 23 mm.
Width47Height51.43Depth29.14mm(1.9 × 2 × 1.1 in)14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: Charging case dimensions (l x w x d) 51,43 x 47 x 29,14 mm. Width and depth are stored as labelled. The length is stored as height, the remaining axis. A Czech review repeats the same figures.
Certifications
2 of 3 differ
Hi-Res Audio
Hi-Res Audio Wireless2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026
Not available
Communication certifications
Not available
FCC Part 15C, ISED Canada IC 6132A-TUNEFLEX220Regulatory filingfccid.io/APITUNEFLEX2Read 21 October 2026Test report: FCC Part 15 Subpart C and ISED RSS-247 for TUNE FLEX 2. IC 6132A-TUNEFLEX2.
Other certifications
Not available
Not available
In the box
2 of 2 differ
In the box
Left and right earbuds, S, M and L ear tips, Charging case, Safety and warranty information, User guide2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current table lists earbuds, S/M/L tips, charging case, safety/warranty information and user guide. Specific maker note says cable omitted from new sales starting May 15, 2025, with transitional retailer stock potentially retaining a cable. No cable is treated as a current standard item and no blanket absence is asserted for every stock revision.
JBL Tune Flex 2 earbuds, Charging case, Type-C USB charging cable, Ear tips in 3 sizes, Open ear tips in 1 size, Warranty card, Quick start guide and safety sheet2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026What's in the Box list.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026What's in the Box: earbuds, Type-C USB charging cable, 3 sizes of ear tips, 1 size of open ear tips, charging case, warranty card and quick start guide with safety sheet.
Cables included
ACMF Buds Pro 2
Not availableBJBL Tune Flex 2
| Type | Count |
|---|---|
| USB-C charging cable | 1 |
Links
Not compared
Product page
Spec sheet
us.nothing.tech/products/cmf-buds-pro-22Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current US maker page embeds declarative product specification tables in its public HTML. These tables were decoded as source data without executing scripts or accessing a private API. Current claims belong to this selected sales listing, without asserting an independently tested physical revision.
support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdf14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026JBL English spec sheet, 2 pages, linked from the JBL support page.
Manual
cdn.shopify.com/s/files/1/0585/5258/2321/files/Buds_Pro_2_User_Guide.pdf8Owner's manualcdn.shopify.com/s/files/1/0585/5258/2321/files/Buds_Pro_2_User_Guide.pdfRead 8 October 2026Official family-download index still links this original B172 V.1 user guide. It was read alongside current specifications. This URL is historical family guidance, not proof that current SKU 6974434225930 is B172. Only controls independently corroborated by current maker listing/support are represented. Original radio, FCC identity, charge estimates and numerical reviewer tests are not transferred to current hardware.
support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf8af14f6/pdfs/LS_JBL_Tune%20Flex%202_QSG_Multilingual.pdf15Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf8af14f6/pdfs/LS_JBL_Tune%20Flex%202_QSG_Multilingual.pdfRead 21 October 2026JBL multilingual quick start guide, 39 pages. The English pages are the first 13.
EPREL registration number
Not available
Not available
Warranty
0 of 1 differ
Manufacturer warranty (source market)
Both are also in the API. Back to all earbuds.

















