Clear Sound -Bluetooth V5.0 Car Bluetooth Receiver, with Noise Isolate technology, can play music and answer phone call with high quality sound
Auto reconnect and fast pairing: the bluetooth aux adapter paring very fast and can auto Re-connect with most of phone after first time pairing
No battery Required: USB port for car power source and aux plug for speaker aux Audio port , bluetooth will be on once car running, no need battery and button switch, easy to use