Enjoy Wireless Music Streaming: This Bluetooth receiver is equipped with 3.5mm to connect non-Bluetooth devices such as non-Bluetooth car audio systems, home stereo systems, speakers, wired headphones , etc. Pair it via Bluetooth with your Bluetooth devices to listen to music or answer calls. Enjoy Hands-Free Calls: And the built-in microphone can be used to answer hands-free calls. One key to accept, reject, hang up and redial the last number. Designed with MFB and powerful/quiet keys, it is very convenient to adjust the music volume. Bluetooth 5.0 Wireless: With Bluetooth 5.0 technology, the connection is super stable, low power consumption energy, high speed, smooth obedience and calls, and the Bluetooth range is up to 33 feet without obstacles. Automatically connect to the last connected device. Fast charging, long battery life: This Bluetooth audio receiver can be fully charged in 2 hours with the supplied Type-C fast charging cable, then work for 16 hours continuously. More convenient is that this Bluetooth music adapter can also be used while charging. Compatible with most devices: The Bluetooth AUX adapter is compatible with most Bluetooth devices such as iPhone, Android smartphone , iPad, laptop, etc. It supports simultaneous connection of 2 Bluetooth devices. Just stop the current player and play the other to change music source.