UGREEN 2-in-1 Bluetooth Adapter Transmitter Receiver Bluetooth AUX 5.0 Wireless 3.5mm Adapter Stereo for Earphones TV Car Audio

The usb mode does not need to use 3.5 audio cables. It can be directly plugged into the car usb interface and speaker usb interface, can be used directly after pairing with the mobile phone. Built-in microphone, when the mobile phone is talking it can be used after pairing with the Bluetooth of the mobile phone. Bluetooth hands-free calling.syi