Why can't my headphone be paired with this USB Bluetooth Adapter?

Please make sure that your headphone support Bluetooth function instead of wireless function, since wireless headphones are not the same as Bluetooth headphones.

What can I do if my Bluetooth headphone/speaker cannot pair with this item?

Please try resetting the item with the following steps. In power-on mode, press the multi-function key for 10 seconds to reset it, the red/green/blue indicator blinks cyclically for 2 times, indicating that the factory restoration is successful.

How can I pair my Bluetooth headphone/speaker with this item?

Please refer to the "How to Use UGREEN Audio Adapter CM668?" instructional video on the product page.

Why doesn't the product enter pairing mode when powered on? Why doesn't the LED light flash red and blue alternately?

First connection auto-pairs with a device. After pairing, it remembers the device and reconnects on power-up (LED flashes every 5s). Hold the multi-function button 3s to pair a new device.

The product's appearance is similar to a USB Bluetooth adapter. What are the differences?

1)Audio only; USB adapter also supports mice, keyboards, and gamepads. 2)Supports SBC/aptX/aptX HD/aptX Adaptive; USB adapter only SBC. 3)Works with PS4/PS5/Switch/PC; USB adapter only Windows.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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UGREEN USB Audio Transmitter, Bluetooth 5.3 Adapter for Connecting Bluetooth Headphones to PS5, PS4, Switch, PC, Wireless Audio Adapter with aptX AD, Included Mini Mic (Plug & Play)

UGREEN USB Audio Transmitter, Bluetooth 5.3 Adapter for Connecting Bluetooth Headphones to PS5, PS4, Switch, PC, Wireless Audio Adapter with aptX AD, Included Mini Mic (Plug & Play)

Product ID: 618041365

Details

Brand
UGREEN
Colour
black
Compatible Devices
Desktop
Connector Type
Auxiliary
Item dimensions L x W x H
15 x 7 x 29

⚡Plug & Play USB 3.0, no drivers needed

🔊aptX AD for ultra-low latency <60ms

🔗Bluetooth 5.3 for stable 33ft range

Description

🎧 Elevate your game audio—wireless freedom with zero lag!

EXTENDED WIRELESS FREEDOM - Bluetooth 5.3 ensures stable connection up to 33 feet—move freely without missing a beat.
GAME CHANGING LOW LATENCY - Experience near-zero audio lag (<60ms) with aptX Adaptive tech—perfect for competitive gaming.
SEAMLESS PLUG PLAY SETUP - Instant Bluetooth audio on PS5, PS4, Switch & PC—no software fuss.
CRYSTAL CLEAR AUDIO QUALITY - Supports aptX HD, aptX AD, and SBC codecs for rich, lossless sound streaming.
VERSATILE MULTI DEVICE COMPATIBILITY - Works flawlessly across consoles, desktops, Macs, and even work calls on Zoom or Teams.

The UGREEN USB Audio Transmitter CM668 is a cutting-edge Bluetooth 5.3 adapter designed to add wireless audio capability to PS5, PS4, Switch, PC, and Mac devices. Featuring aptX Adaptive technology, it delivers ultra-low latency under 60ms for lag-free gaming and supports high-quality audio codecs including aptX HD. Its plug-and-play USB 3.0 interface requires no drivers, ensuring effortless setup. With a reliable 33-foot wireless range and included 3.5mm mic support, it’s perfect for immersive gaming and professional calls alike.

Specifications

ASIN	B0CCT75PK2
Brand	UGREEN
Brand Name	UGREEN
Colour	black
Compatible Devices	Desktop, Headphone
Connector Type	Auxiliary
Current Rating	1 Amps
Customer Reviews	4.1 out of 5 stars 1,899 Reviews
Finish Type	Abs
Item Dimensions	15 x 7 x 29 Millimeters
Item Package Quantity	1
Item Weight Unit of Measure	10 Grams
Item dimensions L x W x H	15 x 7 x 29 Millimeters
Manufacturer	Ugreen Group Limited
Manufacturer Part Number	15765A
Model Number	CM668
Number of Ports	1
Power Plug Type	No Plug
Product Finish Type	Abs
Unit Count	1.0 Count

Reviews

A**X

12.12.2023

D**.

6.04.2026

C**S

10.09.2025

R**O

24.01.2025

J**.

1.02.2026

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