80893 | CM403 | UGREEN Bluetooth Receiver&Transmitter | Black

UGREEN Bluetooth Receiver & Transmitter Black (CM403 / 50050)

Bluetooth 5.0 2-in-1 Audio Receiver & Transmitter with 3.5mm AUX, USB-C Charging, Built-in Microphone, 10m Wireless Range & Plug-and-Play

Product Overview

The UGREEN CM403 Bluetooth Receiver & Transmitter (50050) is a versatile 2-in-1 Bluetooth audio adapter that adds wireless functionality to devices with a 3.5mm audio jack. In Transmitter (TX) mode, it sends audio from non-Bluetooth devices such as TVs, PCs, Nintendo Switch consoles, and in-flight entertainment systems to Bluetooth headphones or speakers. In Receiver (RX) mode, it enables wired speakers, car stereos, amplifiers, and home audio systems to receive wireless audio from smartphones, tablets, and laptops.

Powered by Bluetooth 5.0, the adapter delivers stable wireless connectivity with low latency and supports AAC and SBC codecs for high-quality audio playback. Its compact design includes a built-in rechargeable battery, USB-C charging, and an integrated microphone for hands-free phone calls.

Key Features

• 2-in-1 Bluetooth receiver and transmitter
• Bluetooth 5.0 wireless technology
• TX (Transmitter) mode
• RX (Receiver) mode
• 3.5mm AUX audio connection
• USB-C charging port
• Built-in rechargeable battery
• Built-in microphone for hands-free calls
• AAC codec support (Receiver mode)
• SBC codec support
• Wireless range up to 10 meters
• Plug-and-play operation
• Compact portable design

Dual Working Modes

The adapter easily switches between two operating modes.

Transmitter (TX) Mode

• TV to Bluetooth headphones
• PC to wireless speakers
• Nintendo Switch to Bluetooth headset
• Airplane entertainment systems to Bluetooth earbuds

Receiver (RX) Mode

• Smartphone to car stereo
• Phone to home speakers
• Tablet to amplifier
• Laptop to wired audio systems

This makes it ideal for upgrading older audio equipment with Bluetooth functionality.

Bluetooth 5.0 Wireless Performance

Bluetooth 5.0 provides fast pairing and stable audio transmission.

Benefits include:

• Stable wireless connection
• Lower latency
• Improved energy efficiency
• Reliable audio streaming
• Wireless range up to 10 meters

Supported codecs:

• RX Mode: AAC, SBC
• TX Mode: SBC

Built-in Rechargeable Battery

The integrated 145mAh battery provides portable operation without requiring constant external power.

Battery performance:

• Receiver Mode: Up to 5.5 hours
• Transmitter Mode: Up to 8 hours
• Charging Time: Approximately 1.5 hours

Recharge easily using the USB-C charging port.

Hands-Free Calling

When operating in Receiver mode, the integrated microphone allows convenient hands-free phone calls.

Features include:

• Built-in microphone
• Wireless phone calls
• Music playback
• Easy call management

Ideal for vehicle audio systems without built-in Bluetooth.

Wide Compatibility

Compatible with:

Audio Sources

• TVs
• Desktop PCs
• Laptops
• Nintendo Switch
• Airplane entertainment systems
• MP3 players

Audio Output Devices

• Bluetooth headphones
• Bluetooth earbuds
• Bluetooth speakers

Receiver Mode Devices

• Car stereos
• Home stereo systems
• Amplifiers
• Wired speakers
• AUX-compatible audio systems

Works with any device equipped with a standard 3.5mm AUX audio port.

Specifications