Introduction
The UGREEN CM596 Bluetooth 5.3 Audio Receiver is designed to transform your wired audio devices into wireless ones. Enjoy high-quality audio streaming and hands-free calling in your car, with headphones, or through home audio systems. This manual provides detailed instructions for setup, operation, and maintenance of your device.
Image: UGREEN Bluetooth Audio Receiver main unit with 3.5mm jack and USB-C cable.
Package Contents
Please check the package for the following items:
- UGREEN CM596 Bluetooth Audio Receiver
- 3.5 mm Jack Plug
- 3.5 mm Audio Cable
- USB-C Charging Cable
Image: Contents of the UGREEN Bluetooth Audio Receiver package including the receiver, 3.5mm jack plug, 3.5mm audio cable, and USB-C charging cable.
Product Overview
Familiarize yourself with the device's components:
Image: Diagram of the UGREEN Bluetooth Audio Receiver with labeled parts: Control Light, Multi-function Button, Volume Up/Previous Track, Mute/Next Track, USB C Charging Port, Reset Button, Aux Audio Jack, Microphone.
- Control Light: Indicates device status (pairing, connected, charging).
- Multi-function Button: Power on/off, play/pause, answer/end calls.
- Volume Up/Previous Track Button: Short press for volume up, long press for previous track.
- Mute/Next Track Button: Short press for mute/unmute (during call) or volume down, long press for next track.
- USB-C Charging Port: For charging the device.
- Reset Button: For factory reset (usually a small pinhole).
- Aux Audio Jack: 3.5mm output to connect to audio systems.
- Microphone: For hands-free calling.
Specifications
| Feature | Specification |
|---|---|
| Model | CM596 |
| Bluetooth Version | 5.3 |
| Bluetooth Protocol | AVRCP, A2DP, HFP, HSP |
| Input | 3.5mm Audio |
| Charging Port | USB-C |
| Frequency Range | 2400MHz-2483.5MHz |
| Frequency Response | 20Hz-20kHz |
| Output Voltage | >7Vrms |
| SNR (Signal-to-Noise Ratio) | ≥90dB |
| Codecs | SBC/AAC |
| Battery Type | Lithium Polymer Battery |
| Battery Capacity | 300mAh 3.7V (1.11Wh) |
| Charging Limited Voltage | =5.25V |
| Charging Time | About 2 Hours |
| Runtime | About 15 Hours |
| Transmission Distance | 15m/49ft (No Blocking) |
Image: Bluetooth 5.3 technology with improved stability, faster connection, less noise, and less dropout compared to Bluetooth 5.0. Signal-to-Noise Ratio comparison: 5.0 ≤70dB vs 5.3 ≥90dB.
Setup
1. Connecting the Receiver to Your Audio System
The UGREEN CM596 offers two ways to connect to your audio device:
- Direct 3.5mm Jack Plug: Insert the included 3.5mm jack plug directly into the Aux Audio Jack of the receiver, then plug the other end into your car's AUX input or other audio device.
- 3.5mm Audio Cable: Connect one end of the included 3.5mm audio cable to the Aux Audio Jack of the receiver and the other end to your audio device's 3.5mm input.
Image: Diagram showing two connection types for the UGREEN Bluetooth Audio Receiver: direct AUX 3.5mm Jack Plug and using a 3.5mm Audio Cable.
2. Pairing with a Bluetooth Device
- Power On: Press and hold the Multi-function Button on the receiver until the Control Light flashes, indicating it's in pairing mode.
- Connect to Audio System: Ensure the receiver is properly connected to your car's AUX input or other audio system.
- Pair with Phone: On your smartphone or other Bluetooth-enabled device, go to Bluetooth settings and search for "UGREEN-35054" (or similar model name). Select it to connect. The Control Light will turn solid blue once connected.
Image: Three-step visual guide on how to pair the UGREEN Bluetooth Audio Receiver: 1. Press the multi-function button. 2. Plug the receiver into the car's AUX port. 3. Select 'UGREEN-35054' in your phone's Bluetooth settings.
Operation
Music Playback
- Play/Pause: Short press the Multi-function Button.
- Volume Up: Short press the Volume Up/Previous Track Button.
- Volume Down: Short press the Mute/Next Track Button.
- Next Track: Long press the Mute/Next Track Button.
- Previous Track: Long press the Volume Up/Previous Track Button.
Image: A person enjoying wireless music through a speaker connected to the UGREEN Bluetooth Audio Receiver.
Hands-free Calling
The receiver features a built-in microphone for convenient hands-free calls.
- Answer/End Call: Short press the Multi-function Button.
- Reject Call: Long press the Multi-function Button.
- Mute/Unmute (during call): Short press the Mute/Next Track Button.
Image: UGREEN Bluetooth Audio Receiver mounted in a car dashboard, showing hands-free calling functionality with a microphone icon and Bluetooth signal.
Charging
To charge your UGREEN CM596 Bluetooth Audio Receiver:
- Connect the included USB-C Charging Cable to the USB-C Charging Port on the receiver.
- Plug the other end of the cable into a standard USB power adapter (not included) or a USB port on your computer.
- The Control Light will indicate charging status.
A full charge takes approximately 2 hours and provides about 15 hours of music/call runtime, with a standby time of up to 200 hours.
Image: Battery life indicators for the UGREEN Bluetooth Audio Receiver: 15 hours of music/call, 2 hours quick charge, 200 hours of standby time, and USB-C charging.
Maintenance
- Keep the device dry. Avoid exposure to moisture or liquids.
- Do not attempt to disassemble or modify the device.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Store the device in a cool, dry place when not in use.
Troubleshooting
- Device won't power on: Ensure the device is charged. Connect it to a power source using the USB-C cable.
- Cannot pair with my device:
- Make sure the receiver is in pairing mode (flashing control light).
- Ensure Bluetooth is enabled on your source device (smartphone, tablet).
- Move the receiver closer to your source device.
- Turn off and on the Bluetooth on your source device.
- Try resetting the receiver using the Reset Button.
- No sound or poor audio quality:
- Check if the receiver is properly connected to your audio system's AUX input.
- Ensure the volume on both the receiver and your source device is turned up.
- Verify that the correct audio input is selected on your car stereo or home audio system.
- Reduce the distance between the receiver and your source device.
- Avoid physical obstructions and strong electromagnetic interference.
- The Bluetooth 5.3 technology offers a Signal-to-Noise Ratio (SNR) of ≥90dB for clearer sound. If experiencing significant noise, check for interference.
- Hands-free calling issues:
- Ensure the microphone is not obstructed.
- Check the volume settings during a call.
User Tips
- Connection Confirmation: The receiver emits a confirmation beep when successfully connected to a device, rather than a voice prompt.
- Versatile Use: This adapter is not limited to car use. It can be plugged into any device with a 3.5mm audio input, such as retro consoles, headphones (if they have a 3.5mm input and you want to make them wireless), or digital soundboards, to enable Bluetooth audio reception.
- Optimal Placement: For the best signal and call quality, try to place the receiver in a location with minimal obstructions between it and your paired device.
Image: Four usage scenarios for the UGREEN Bluetooth Audio Receiver: For Car Radios, For Headphones, For Outdoor Music, For Home Audio.
Warranty and Support
UGREEN products are designed to meet high-quality standards. For warranty information or technical support, please refer to the official UGREEN website or contact their customer service directly. Keep your purchase receipt for warranty claims.





