CMF BY NOTHING Clip Pro B189 Open-Ear Wireless Headphones, Coral

CMF BY NOTHING Clip Pro B189 are open-ear clip-on wireless headphones in Coral, with Bluetooth 5.4 and a claimed 10 hours of playback per charge. Customer feedback is positive about the design and smart dial but mixed on sound and fit, so fit comfort and sound preference are worth weighing before buying.

At a glance

Clip-on open-ear design with a three-point contact fit described by the manufacturer.
Bluetooth 5.4 and claimed connection to two devices at once.
Manufacturer claims up to 10 hours per charge and 32.5 hours total with the charging case.
The listing describes an app with EQ customisation, spatial audio and anti-leakage options.

Price

£59.00Save 25%

Reference price: ~~£79.00~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Open-ear clip-on construction may suit listeners who prefer not to use in-ear buds.
Dual-device connectivity is listed, with the manufacturer describing switching between a phone and laptop.
The claimed 10-hour single-charge playback and 32.5-hour total with the case may reduce the need for frequent charging.

Technical specifications

28 specifications

Identity
Brand	CMF BY NOTHING
Model	B189
Colour	Coral

Connectivity and controls
Wireless connection listed	Wireless
Bluetooth	Bluetooth
Bluetooth version	5.4
Control methods listed	Touch
Charging interface	USB Type C
Headphone jack	Without Headphone Jack

Power and battery
Battery life listed	10 Hours
Battery charge time	70 Minutes

Dimensions and fit
Form factor	Over Ear
Ear placement	On Ear
Earpiece shape	Hook
Weight listed	50.65 Grams
Carrying case length	26.69 Millimetres
Carrying case width	51.01 Millimetres
Carrying case height	52.1 Millimetres
Carrying case weight	38.81 Grams

Audio
Driver type	Dynamic Driver
Driver size in details	10.08 Millimetres
Impedance	16 Ohms
Noise control listed	Sound Isolation
Noise control features	AI Clear Voice Technology, Noise Reduction

Materials and protection
Water resistance listed	Water Resistant
Enclosure material	Plastic Thermoplastic Elastomer (TPE)
Carrying case material	Plastic

Compatibility
Compatible devices	Desktops, Laptops, Mobile phones, Tablets, VR Headset

What to know before buying

Listing details to confirm

The listing is inconsistent about the controls: details specify touch, while feature copy describes a Smart Dial and a physical button. It also gives a 10.08 mm driver size in details and 10.8 mm in feature copy, and describes sound isolation/noise reduction alongside an open-ear design. The listed single-charge battery life is 10 hours, while total playback with the case is claimed as 32.5 hours. Confirm which configuration and features apply to the selected listing before purchase.

What’s in the box

User manualIncluded
CMF Clip Pro headphonesCheck selected pack
User GuideCheck selected pack
How To Wear guideCheck selected pack

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

Who is it for?

A good fit for

Listeners looking for clip-on open-ear headphones for everyday use, fitness or travel.
Buyers who want claimed multipoint connectivity between a phone and laptop.

Less suited to

Anyone who needs a consistently sealed fit or strong passive isolation. The open-ear format and mixed customer feedback on fit may not suit that preference.
Buyers who require a confirmed control layout or a settled driver specification without checking the listing.

CMF BY NOTHING Clip Pro B189 Open-Ear Wireless Headphones, Coral · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 93 ratings

5 stars55%55%
4 stars21%21%
3 stars8%8%
2 stars7%7%
1 star9%9%

Customer feedback describes the headphones as well designed and lightweight, and appreciates the smart dial. Sound quality and fit receive mixed reactions, including reports ranging from satisfying sound and a secure hold to underwhelming sound and slipping. For buyers choosing a clip-on open-ear design, those differing fit and sound impressions matter because comfort and perceived audio quality can vary; the listing's claimed lightweight construction does not settle how they will fit an individual ear.

Positive themes

Customers describe the design positively and appreciate the lightweight feel.
Customers mention the smart dial favourably.

Mixed feedback

Customer feedback on sound quality is mixed.
Reports differ on whether the earbuds stay securely in place and fit different ear sizes.

Frequently asked questions

How long does the battery last?

The details list 10 hours. Manufacturer feature copy claims up to 10 hours on one charge and 32.5 hours total with the charging case. Treat these as claims, not guaranteed runtime.

Can the headphones connect to two devices?

The feature copy claims dual-device connectivity and describes switching between a phone and laptop.

What controls do these headphones use?

The listing details say touch controls, but other product copy describes a Smart Dial and a physical button. Check the selected listing to confirm the controls.

Are these suitable for exercise?

Fitness is among the stated uses, and the listing describes the headphones as water resistant. It gives no specific resistance rating, and customer feedback on secure fit is mixed.