[Wireless Music Streaming]Bluetooth receiver can be connected to non-Bluetooth car audio system, stereo, speaker and wired headphone via 3.5mm adapter; Equipped with Bluetooth 5.0 chip, stable connection, fast transmission speed, wide signal range. Just pair it with your phone and start listening to your favorite music! [intelligent noise reduction technology] our bluetooth aux receiver uses the latest noise reduction and digital signal processing technology (DSP) to eliminate echoes, block out intrusive background noise (like wind, traffic, or crowds) and provide you with clear audio for calls. [Extra Long Battery] The Bluetooth Receiver auxiliary can work up to 4 hours during calls or music playback. It only takes 1.5 hours to fully charge with the USB fast charging cable (included in the package). In addition, this Bluetooth music adapter is very convenient to use while charging. [Dual Connection] The portable Bluetooth plug receiver can be paired with two devices at the same time. Enjoy your music and never worry about missing your phone. Once connected, the Bluetooth receiver will automatically reconnect to your last connected Bluetooth device, provided it is within wireless range. [Wide Compatibility] The Bluetooth 5.0 receiver is compatible with most smartphones and is ideal for home or vehicle audio systems. (eg: Computer, TV, Projector (Transmit mode) / Speaker, Headset (Receive mode)). Product size: 59.5*22*12mm