Ricevitore Bluetooth 5.0 Wireless Auto USB 3.5mm Aux Lettore Musicale Adattatore Audio Nuovo
Must connect aux 3.5mm, then the bluetooth can read audio from car or other audio player. Mostly the car have aux usb port, the AUX/AUX-IN Port provides audio, and USB port support 5V/12V. connector : aux usb.