CMF by Nothing Buds 2a Wireless Earbuds, Light Grey

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Product guide

CMF by Nothing Buds 2a Wireless Earbuds, Light Grey

Light Grey: CMF by Nothing Buds 2a are in-ear wireless earbuds with active noise cancellation, transparency mode and a claimed 35.5-hour case-assisted battery life. The listing also claims an 8-hour battery life, but customer feedback includes concerns about battery duration and durability, so those experiences are worth weighing against the stated figures.

At a glance

The listing claims 42dB hybrid ANC and includes a transparency mode for hearing surrounding sound.
A 12.4mm driver and Ultra Bass Technology 2.0 are listed, with Dirac tuning described in the feature text.
Four microphones and wind-noise reduction are claimed for calls.
Bluetooth 5.4 and a dual-device connection are listed.
The Nothing X app is described as providing EQ and ANC adjustments, plus low-latency mode. The listing does not confirm every feature's device compatibility.

Price

$50.35Save 36%

Reference price: ~~$79.00~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

ANC and transparency mode offer different listening options for quieter or more aware use.
Bluetooth 5.4, app controls and a claimed dual-device connection give several ways to manage listening and connections.
The claimed 35.5-hour case-assisted battery figure may suit buyers who prefer fewer charging stops.

Cons

Customer feedback reports short battery duration and durability concerns, despite the higher battery figures claimed in the listing.
Opinions on sound quality, reliability, comfort and value are mixed.

Technical specifications

30 specifications

Identity
Brand	CMF BY NOTHING
Model	CMF Buds 2a Light Grey
Colour	Light Grey
Form factor	In Ear

Connectivity and controls
Wireless connection listed	Bluetooth
Bluetooth version	5.4
Bluetooth range	10 Meters
Control methods listed	App
Touch control	Touch Control
USB interface	USB Type C

Audio and noise control
Noise control	Active Noise Cancellation
Noise control features	Transparency Mode, Wind Noise Reduction
Driver type	Dynamic Driver
Driver size	12.4 Millimeters
Impedance	32 Ohms
Frequency range	20 Hz to 2900 Hz
Sensitivity	42 dB

Power and battery
Battery life listed	8 Hours
Case-assisted battery life	35.5 Hours
Case battery capacity	460 Milliamp Hours
Case charging time	89 Minutes
Battery charge time	5 Minutes

Dimensions and installation
Weight listed	42.75 Grams
Case length	54.7 Millimeters
Case height	23 Millimeters

Materials and protection
Enclosure material	Plastic
Water resistance listed	Water Resistant

Other details
Compatible devices	Mobile phones
Headphone jack	No Jack
Warranty description	1 year

What to know before buying

The listing identifies the case as lanyard-ready but does not provide an explicit package contents list. Confirm whether a lanyard or other accessories are included with the selected listing.

Listing details to confirm

The listing claims 8 hours of earbud battery life and 35.5 hours with the case, while customer feedback includes reports of about 4 hours and broader battery and durability concerns. These are reported experiences, not confirmed specifications or a proven defect. Check the selected listing for the usage conditions behind its battery claims.

What’s in the box

USB cableCheck selected pack
Lanyard-ready caseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Listeners wanting in-ear earbuds with ANC and a transparency mode.
People seeking app-based sound and noise-control adjustments, subject to device compatibility.
Buyers considering earbuds for calls or workouts who want the listed microphones, wind-noise reduction and water resistance.

Less suited to

Buyers who need dependable long battery life without uncertainty, given customer reports of short duration.
Anyone who needs consistently rated sound quality, comfort or reliability based on customer feedback.

CMF by Nothing Buds 2a Wireless Earbuds, Light Grey · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 2,118 ratings

5 stars64%64%
4 stars16%16%
3 stars7%7%
2 stars6%6%
1 star7%7%

Customer feedback is positive about perceived quality and noise cancellation, while sound quality, reliability, comfort and value receive mixed reactions. Battery life and durability draw criticism, including reports of short use between charges and some units stopping after a period of use. The listing claims 8 hours per charge and 35.5 hours with the case, but those figures do not resolve the reported concerns. Aggregate ratings lean positive overall, yet the spread of lower ratings is a reminder that experiences vary.

Positive themes

Customers describe the earbuds as good quality and appreciate the noise cancellation.

Negative themes

Customers report disappointing battery life and durability, including short battery duration.

Mixed feedback

Feedback on sound quality, reliability, comfort and value is mixed.

Frequently asked questions

How long does the battery last?

The listing states 8 hours for the earbuds and 35.5 hours with the case. Customer feedback also reports shorter durations, including about 4 hours, so actual experience may differ.

Do these earbuds have noise cancellation?

Yes. The listing specifies active noise cancellation and transparency mode, and claims 42dB hybrid ANC.

Can they connect to two devices?

Dual-device connection is listed. Check the selected listing or app details for supported device behaviour.

Are they suitable for exercise?

The listing describes them as suitable for workouts and states water resistance, but gives no specific usage conditions here. Do not treat the general wording as a guarantee for every activity or exposure.