UGREEN CM403 (80893) Bluetooth Receiver & Transmitter

UGREEN CM403 (80893) Bluetooth Receiver & Transmitter

UGREEN CM403 (80893) Bluetooth Receiver & Transmitter that functions both as a Bluetooth transmitter (TX) and a Bluetooth receiver (RX). This means it can send audio from non-Bluetooth devices to Bluetooth headphones, speakers, or earbuds, and it can receive wireless audio from a phone or tablet to wired speakers, car stereos, or audio systems

Key Features & Specifications (SEO-Friendly Breakdown)

Dual Mode: Receiver & Transmitter

TX Mode (Transmit): Stream audio from non-Bluetooth sources such as TVs, computers, gaming consoles, and MP3 players to Bluetooth headphones or speakers.

RX Mode (Receive): Convert wired speakers, car stereos, or older headphones into Bluetooth-enabled devices to play music from phones, tablets, or laptops.

Bluetooth 5.0 for Stable Wireless Performance

Powered by Bluetooth 5.0 technology, the CM403 supports fast pairing, stable connections, and improved energy efficiency compared to older Bluetooth versions.

Audio Codec Support

RX Mode: Supports SBC and AAC codecs for high-quality sound.

TX Mode: Supports SBC codec for reliable transmission.

Battery & Portability

Battery Capacity: ~140-145 mAh built-in rechargeable battery.

Playtime: Up to 8 hours in transmit mode and about 5.5–8 hours in receive mode on a single charge.

Charging: USB-C charging port; charges in ~1.5 hours.

3.5mm Audio Support

The device uses a standard 3.5mm AUX input/output, compatible with almost any analog device, making it easy to add Bluetooth to older hardware.

Multipoint Connection

You can pair the CM403 with two Bluetooth devices at once, so you can easily switch between devices without repeating the pairing process.

10m (33ft) Range & Clear Audio

Enjoy a wireless range of up to 10 meters with low distortion and high signal-to-noise ratio for crystal-clear sound.

Practical Use Cases

1. Upgrade Non-Bluetooth TVs

No Bluetooth on your TV? Simply plug in the CM403 and send audio to Bluetooth headphones or speakers — perfect for late-night watching.

2. Make Your Car Stereo Bluetooth

Old car stereo? Plug the CM403 into the AUX input and stream music wirelessly from your phone — ideal for daily commuting and road trips.

3. Wireless Audio for Gaming & PCs

Connect the transmitter to your desktop or console and enjoy wireless audio with low latency — no more tangled cables.

4. Turn Wired Speakers Into Smart Speakers

Got quality wired speakers? This gadget gives them a second life by adding Bluetooth streaming for phones and tablets.

Tips & Tricks for Best Experience

Ensure Proper Pairing

Press and hold the multifunction button until the LED indicates pairing mode. Then connect from your device’s Bluetooth settings.

Use AAC Mode for Better Audio

If supported by your device, AAC mode offers better audio quality than standard SBC.

Battery Care

Use only the included USB-C cable for charging, and avoid leaving the battery fully drained for long periods. This helps extend battery lifespan.

Pros & Cons

Pros

Dual mode saves buying separate devices.

Bluetooth 5.0 offers better stability and range.

Universal AUX compatibility.

Long battery life and USB-C charging.

Multipoint pairing enables connection with two devices.

Cons

Some users report occasional disconnects (common with Bluetooth).

Not compatible with devices without an audio jack.

Simultaneous TX + RX use is not supported.

Final Verdict

The UGREEN CM403 (80893) Bluetooth Receiver & Transmitter is a powerful yet affordable Bluetooth solution for anyone wanting to add wireless audio to legacy devices. Its solid build, long battery life, and dual-mode support make it one of the most versatile Bluetooth adapters on the market today — perfect for home entertainment, car audio upgrades, and portable wireless streaming