UGREEN CM872 Bluetooth AUX Transmitter and Receiver, 18-hour claim

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Product guide

UGREEN CM872 Bluetooth AUX Transmitter and Receiver, 18-hour claim

UGREEN CM872 is a battery-powered Bluetooth AUX adapter that the listing describes as a two-way transmitter and receiver. Mode-specific battery claims are 16 hours for transmit and 18 hours for receive, while the advertised Bluetooth version is inconsistent across the listing.

At a glance

Works as a transmitter or receiver over a 3.5mm AUX connection, according to the listing.
Battery-life claims differ by mode: 16 hours transmitting and 18 hours receiving after a full charge.
The listing claims dual-device connection and a 10m (32 ft) wireless range.
The listing specifies SBC/AAC support in receive mode and SBC in transmit mode.

Price

€23.99Save 27%

Reference price: ~~€32.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Two-way operation can connect a Bluetooth audio source to wired audio equipment or send AUX audio to Bluetooth headphones.
Battery life is stated separately for both operating modes, helping buyers assess likely use between charges.
Customer feedback reports easy setup, portability and positive experiences with sound quality and compatibility.

Cons

Bluetooth codec support is limited to SBC in transmit mode, according to the listing.

Technical specifications

21 specifications

Identity
Brand	UGREEN
Model	CM872

Connectivity and controls
Wireless connection listed	AUX
Control methods listed	Touch
Bluetooth versions claimed	Bluetooth 6.0
Bluetooth version in feature text	Latest Bluetooth 5.4 Technology

Audio and compatibility
Audio input	3.5mm AUX
Audio output mode	Stereo
Number of audio channels	2
Supported codecs in receive mode	SBC/AAC
Supported codec in transmit mode	SBC
Claimed wireless range	10m (32 ft)
Listed compatible devices	Smartphones, tablets, laptops, TVs, car stereos, headphones

Power and battery
Power configuration	Battery Powered
Battery type	Lithium-Ion, Lithium-Metal
Battery claim in transmit mode	16H
Battery claim in receive mode	18H
Included battery statement	1 Lithium Metal batteries required. (included)
Battery energy content	1.1 Watt Hours

Materials and protection
Material listed	Electronic Components
Outer material also listed	Plastic

What to know before buying

Listing details to confirm

Bluetooth version claims conflict: the title and details say Bluetooth 6.0, while feature text says Bluetooth 5.4. The title advertises 18 hours overall, but the mode-specific claim is 16 hours transmitting and 18 hours receiving. Compatibility wording lists AirPods Pro/Max broadly, while another note excludes AirPods Pro 2, AirPods 4 and AirPods 4 ANC2. Check the required version and headphone compatibility before buying. The listing also says the adapter is not compatible with musical instruments and is not recommended for guitar or piano use.

Who is it for?

A good fit for

People who need a compact AUX-to-Bluetooth link for headphones or a Bluetooth-to-AUX link for a car stereo, TV or other audio equipment.
Travellers who want a battery-powered adapter and can use the listed 3.5mm AUX connection.

Less suited to

Musicians seeking an adapter for guitar, piano or performance equipment.
Buyers who require a confirmed Bluetooth version or guaranteed compatibility with AirPods Pro 2, AirPods 4 or AirPods 4 ANC2.

UGREEN CM872 Bluetooth AUX Transmitter and Receiver, 18-hour claim · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 4,229 ratings

5 stars61%61%
4 stars16%16%
3 stars9%9%
2 stars4%4%
1 star10%10%

Customer feedback describes the adapter as easy to set up and portable, with positive comments about sound quality, battery life and compatibility, including travel use. Connectivity and reliability experiences are mixed, with some customers reporting slow connections or improper operation. Those concerns matter when frequent pairing or dependable immediate connection is essential. The feedback is not a measurement of the listing's mode-specific battery claims or wireless range.

Positive themes

Customers report easy setup and portability.
Customer feedback is positive about sound quality, battery life and compatibility.

Mixed feedback

Connectivity and reliability feedback is mixed, with reports of slow pairing or the adapter not working properly.

Frequently asked questions

Can the UGREEN CM872 transmit and receive Bluetooth audio?

Yes. The listing describes both transmitter and receiver modes using a 3.5mm AUX connection. It specifies SBC in transmit mode and SBC/AAC in receive mode.

How long does the battery last?

The listing claims 16 hours in transmit mode and 18 hours in receive mode after a full charge. These are separate mode-specific claims, not a single runtime for all use.

Which Bluetooth version does it use?

The listing is inconsistent. The title and specifications claim Bluetooth 6.0, while feature text says Bluetooth 5.4. Confirm the version you require before buying.

Will it work with AirPods Pro 2 or AirPods 4?

A listing note says it is incompatible with AirPods Pro 2, AirPods 4 and AirPods 4 ANC2, despite broader AirPods compatibility wording elsewhere.

Is it suitable for a guitar or piano?

The listing says it is not compatible with instruments and advises against guitar or piano use. It is intended for Bluetooth audio transfer between headphones and common audio equipment.