Product Overview
The UGREEN Bluetooth Audio Transceiver (Model CM523) is a versatile device designed to enhance your audio experience. It enables wireless audio streaming from Bluetooth-enabled sources to non-Bluetooth audio systems, or transmits audio from wired sources to Bluetooth headphones and speakers.
Diagram Description: A simple line drawing shows the compact, rectangular UGREEN Bluetooth Audio Transceiver. One end features a USB-A connector for power, and the other end has a 3.5mm audio jack for audio input/output. Arrows indicate connections to a power source (like a TV or PC USB port) and to external speakers or headphones.
Package Contents
- UGREEN Bluetooth Audio Transceiver
- USB-A Power Cable
- 3.5mm Audio Cable
- User Manual
Specifications
| Specification | Details |
|---|---|
| Model | CM523 |
| Bluetooth Version | V5.0 + EDR |
| Bluetooth Protocol | A2DP, AVRCP |
| Frequency Range | 2.402GHz-2.480GHz |
| Transmission Distance | Up to 10m (33ft) |
| Input/Output Port | 3.5mm Audio Jack |
| Power Supply | USB-A Port |
| Supported Codecs | SBC |
How to Use
RX Mode (Receiver Mode)
Use this mode to receive audio wirelessly from your smartphone, tablet, or computer and play it through your wired speakers or home stereo system.
Diagram Description: The transceiver is shown connected via a 3.5mm audio cable to a speaker. The transceiver is labeled "Bluetooth Audio Transceiver" and "RX Mode". An arrow indicates audio flowing from the transceiver to the speaker.
- Connect the UGREEN Bluetooth Audio Transceiver to a USB power source using the provided USB-A cable.
- Connect one end of the 3.5mm audio cable to the transceiver's audio output port and the other end to your speaker or stereo system's audio input port.
- The transceiver will automatically enter pairing mode (indicated by a flashing LED).
- On your Bluetooth-enabled device, go to Bluetooth settings, search for available devices, and select "UGREEN CM523" to pair.
- Once paired successfully, the LED on the transceiver will become solid, and audio will play through your speakers.
TX Mode (Transmitter Mode)
Use this mode to transmit audio wirelessly from your TV, PC, or other audio sources to your Bluetooth headphones or speakers.
Diagram Description: The transceiver is shown connected via a 3.5mm audio cable to a TV or PC's audio output. The transceiver is labeled "Bluetooth Audio Transceiver" and "TX Mode". An arrow indicates audio transmitting from the transceiver to a Bluetooth headphone icon.
- Connect the UGREEN Bluetooth Audio Transceiver to a USB power source using the provided USB-A cable.
- Connect one end of the 3.5mm audio cable to the transceiver's audio input port and the other end to your TV or PC's audio output port.
- Turn on your Bluetooth headphones or speakers and put them into pairing mode.
- The transceiver will automatically search for and pair with the nearest Bluetooth device. The LED will flash during pairing and become solid once connected.
- Ensure your TV/PC audio output is set to the correct source if necessary.
Troubleshooting
No Sound
- Ensure the transceiver is powered on (LED indicator is lit). ✔️
- Check that the audio cables are securely connected to both the transceiver and the audio output/input device. ✔️
- Verify that the correct audio source is selected on your playback device (e.g., TV/PC). ✔️
- Confirm the volume level is not muted or set too low on both the transceiver's connected device and the playback device. ✔️
- In RX mode, ensure your Bluetooth device is paired and connected. ✔️
- In TX mode, ensure your Bluetooth headphones/speakers are paired and connected. ✔️
Cannot Pair Bluetooth Device
- Make sure the Bluetooth device (headphones/speakers/smartphone) is in pairing mode. ⚙️
- Ensure the transceiver is within the Bluetooth range of your device (typically up to 10 meters / 33 feet). ?
- Turn off other nearby Bluetooth devices that might cause interference. ❌
- Restart both the transceiver and the Bluetooth device, then try pairing again. ?
Intermittent Connection / Audio Stuttering
- Reduce the distance between the transceiver and your Bluetooth device. ?
- Minimize obstructions between the devices (e.g., walls, metal objects). ?
- Avoid other wireless devices that might cause interference (e.g., Wi-Fi routers, microwaves). ?
Compliance Information
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
CE Declaration of Conformity
UGREEN Technology Co., Ltd. hereby declares that this product is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU.
UKCA Declaration of Conformity
UGREEN Technology Co., Ltd. hereby declares that this product is in compliance with the relevant UK legislation.
