UGREEN Bluetooth AUX Adapter 3.5mm RCA Receiver

UGREEN Bluetooth AUX Adapter is a compact Bluetooth 5.3 receiver that turns legacy 3.5mm or RCA-equipped stereos and headphones into wireless audio systems with dual-device pairing and an internal battery.

If you own older speakers, an amplifier, or wired headphones without wireless support, this UGREEN receiver adds Bluetooth streaming quickly and cleanly. It supports both 3.5mm and RCA outputs, offers dual simultaneous phone connections, and includes an internal rechargeable battery so you can play music untethered or while charging. The unit also benefits from Bluetooth 5.3 for stable range and reduced latency compared with older adapters.

How easy is it to connect to my old stereo?

Pairing is straightforward: plug the receiver into the stereo’s AUX or RCA input, power it on, and pair from your phone or tablet. Once paired, the adapter remembers the last connected device for automatic reconnection when turned on.

• Includes a 3.5mm audio cable for direct AUX hookup.
• RCA outputs let you connect to vintage receivers and powered speakers.
• Simple top-button control for play/pause and pairing.

Can more than one phone play to the same speaker?

Yes — the UGREEN adapter supports dual pairing so two phones or tablets can be connected at the same time. This makes it easy to switch DJs at a party or share playlists without repeatedly disconnecting and re-pairing devices.

• Dual simultaneous connections for shared listening sessions.
• Switch playback control from either paired device seamlessly.
• Maintains stable links thanks to Bluetooth 5.3 enhancements.

What battery life and range can I expect?

The built-in battery provides hours of playback on a single charge and also allows operation while plugged in, eliminating interruptions during long sessions. Bluetooth 5.3 gives a reliable wireless link up to about 10 meters (33 feet) in typical home environments.

• Up to around 8 hours of wireless playback per charge.
• Can be used while charging via the included Micro USB cable.
• Typical operating range about 10 meters for everyday home use.

How is the audio quality and latency?

The adapter uses the Bluetooth 5.3 chip and supports multiple decoding methods to deliver improved audio fidelity and lower latency than many older receivers. While not a replacement for high-end wired DACs, it provides clear sound and responsive playback for music and streaming video.

• Bluetooth 5.3 chip for stable transmission and improved throughput.
• Multiple codec support to reduce lag and preserve sound detail.
• Low-latency performance suitable for most streaming and home video.

Who this product is for: The UGREEN Bluetooth AUX Adapter is aimed at people who want to revive older audio equipment, add wireless convenience to wired headphones, or let multiple users stream to the same speaker system without rewiring. It’s a practical choice for homes, small gatherings, or anyone seeking simple, reliable Bluetooth streaming for legacy devices.

What’s included: UGREEN Bluetooth Receiver Adapter, 1m Micro USB charging cable, 1m 3.5mm audio cable, user manual (RCA cable and wall charger not included).