Nothing / CMF Buds

Nothing / CMF Bluetooth sockets can be accessed by only one application at a time. Do not run other companion or monitoring apps while using BudsLink, such as:
earctl
earweb
Bluetooth Battery Meter GNOME Extension (disable the Nothing / CMF feature in the extension preferences)

Displays a circular battery widget, supporting either a single battery (headset) or three separate levels for Left, Right, and Case.
The case battery is shown only when the buds report it, usually when the case is charging or when at least one bud is inside.
Only certain models support ANC mode.

Icons:

Anti-Noise Cancellation (ANC)

	Anti-Noise Cancellation Off
	Anti-Noise Cancellation On
	Transperancy
	Adaptive

Features

App can detect Nothing and CMF buds / headsets among connected Bluetooth devices.
It communicates over RFCOMM sockets to support features such as:
Battery level reporting
Control of ANC (Active Noise Cancellation) mode (if supported)
Adaptive noise level customization (if supported)
Configure Stem/Touch Equalizer, etc.

Configuration by Device

Configure per device settings if supported

Icon selection

Device icons: Select from the available options for your headset type (single-battery or dual-battery devices).
Case icon: For models that report a case battery, an additional case icon can be selected.

Other settings:

Other settings are self explanatory similar to settings available in OEM Mobile App

Compatibility

Some devices have not yet been tested and may show incorrect features in the configuration. Others may be missing entirely. If you notice missing devices or incorrect feature mappings, please open an issue on GitHub so we can add or correct them.

Currently tested and confirmed working:

CMF Buds 2 Plus [B184] ✅ — Credits: ArcticDev78
Nothing Headphone (1) [B170] ✅ — Credits: Lascar_s@matrix
CMF Buds Pro 2 [B172] ✅ — Credits: khaledkhamis26
CMF Buds 2 [B179] ✅ — Credits: duckeydev
CMF Buds 2a [B179] ✅ — Credits: shakasan
Neckband Pro [B164] ✅ — Credits: iamxnfa
Nothing Headphone (a) [B198] ✅ — Credits: The-Nyla

Compatibility List

Ear (2) (B155)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Personalized ANC	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Find My Buds	✅	❌
Gesture	✅	❌

Ear (Stick) (B157)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Gesture	✅	❌

Nothing Ear (A) (B162)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Gesture	✅	❌

Buds Pro (B163)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Find My Buds	✅	❌
Gesture	✅	❌

Neckband Pro (B164)

Feature	Supported	Tested
Battery Level	Single	✅
Noise Control	✅	✅
Noise Control Level	Low, Mid, High	✅
Noise Control Adaptive	✅	✅
Eq Preset	✅	✅
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	✅
Spatial Audio	✅	✅
Low Latency Mode	✅	✅
Find My Buds	✅	✅
Gesture	✅	✅

CMF Buds (B168)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Find My Buds	✅	❌
Gesture	✅	❌

Nothing Headphone (1) (B170)

Feature	Supported	Tested
Battery Level	Single	✅
Noise Control	✅	✅
Noise Control Level	Low, Mid, High	✅
Noise Control Adaptive	✅	✅
Eq Preset	✅	✅
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	✅
Spatial Audio	✅	✅
In Ear Detection	✅	❌
Low Latency Mode	✅	✅
Find My Buds	✅	✅
Gesture	✅	✅

Nothing Ear (B171)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Personalized ANC	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Gesture	✅	❌

CMF Buds Pro 2 (B172)

Feature	Supported	Tested
Battery Level	Left+Right+Case	✅
Noise Control	✅	✅
Noise Control Level	Low, Mid, High	✅
Noise Control Adaptive	✅	✅
Eq Preset	✅	✅
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	✅
Spatial Audio	✅	✅
In Ear Detection	✅	✅
Low Latency Mode	✅	✅
Find My Buds	✅	✅
Gesture	✅	✅

Nothing Ear (3) (B173)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Personalized ANC	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Spatial Audio	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Gesture	✅	❌

Nothing Ear (Open) (B174)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Low Latency Mode	✅	❌

CMF Headphone Pro (B175)

Feature	Supported	Tested
Battery Level	Single	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	❌
Spatial Audio	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Find My Buds	✅	❌
Gesture	✅	❌

CMF Buds 2 (B179)

Feature	Supported	Tested
Battery Level	Left+Right+Case	✅
Noise Control	✅	✅
Noise Control Level	Low, Mid, High	✅
Noise Control Adaptive	✅	✅
Eq Preset	✅	✅
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	✅
Spatial Audio	✅	✅
Low Latency Mode	✅	✅
Find My Buds	✅	✅
Gesture	✅	✅

Nothing Ear (1) (B181)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, High	❌
Eq Preset	✅	❌
Low Latency Mode	✅	❌
Gesture	✅	❌

Nothing Ear (a) (B183)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Gesture	✅	❌

CMF Buds 2 Plus (B184)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	✅
Noise Control Level	Low, Mid, High	✅
Noise Control Adaptive	✅	✅
Eq Preset	✅	✅
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	✅
Spatial Audio	✅	✅
In Ear Detection	✅	✅
Low Latency Mode	✅	✅
Find My Buds	✅	❌
Gesture	✅	✅

CMF Buds 2a (B185)

Feature	Supported	Tested
Battery Level	Left+Right+Case	✅
Noise Control	✅	✅
Eq Preset	✅	✅
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	✅
Low Latency Mode	✅	✅
Find My Buds	✅	✅
Gesture	✅	✅

CMF Buds Pro 2 (B187)

Feature	Supported	Tested
Battery Level	Left+Right+Case	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	❌
Spatial Audio	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Find My Buds	✅	❌
Gesture	✅	❌

Nothing Headphone (a) (B186)

Feature	Supported	Tested
Battery Level	Single	❌
Noise Control	✅	❌
Noise Control Level	Low, Mid, High	❌
Noise Control Adaptive	✅	❌
Eq Preset	✅	❌
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	❌
Spatial Audio	✅	❌
In Ear Detection	✅	❌
Low Latency Mode	✅	❌
Find My Buds	✅	❌
Gesture	✅	❌

Nothing Headphone (a) (B198)

Feature	Supported	Tested
Battery Level	Single	✅
Noise Control	✅	✅
Noise Control Level	Low, Mid, High	✅
Noise Control Adaptive	✅	✅
Eq Preset	✅	✅
Eq Custom	Not Implemented	❌
Enhanced Bass	✅	✅
Spatial Audio	✅	✅
In Ear Detection	✅	❌
Low Latency Mode	✅	✅
Find My Buds	✅	✅
Gesture	✅	✅