This car bluetooth adapter can connect to non-bluetooth car audio systems, home stereos, speakers, wired headphones via the 3.5mm AUX adapter.Via a 3.5mm AUX adapter, just pair it with your mobile phone and start listening to your favorite music. CVC8.0 Noise Cancellation tech helps eliminate echo and block intrusive background noise, providing you with clear sounds during calls.There is a built-in microphone for hands-free calling, and an "MFB" button for answering / hanging up / rejecting / recalling calls. The hands-free function facilitates calls while driving.This Bluetooth auto aux works for up to 16 hours during normal use. Support to connect 2 Bluetooth devices at the same time. with a Bluetooth range of 10-15 metersPackage Contents: 1 * Bluetooth Receiver, 1 * 3.5mm Aux Adapter, 1 * TypeC Charging Cable, 1 * 3.5mm Audio Cable, 1 * User Manual