2in1 Bluetooth 3.5mm Audio Adapter 5.1 Transmitter Receiver

YAU41 2 in1 Wireless Adapter 3.5mm Audio AUX Adapter Bluetooth 5.1 Transmitter Receiver For Car Audio Music Aux Handsfree Headset. Support Mobile Phone/Tablet/MP4/MP3 to Audio Devices. Features - Bluetooth 5.1 receiver. - 3.5mm plug connector. - TX mode launch Bluetooth. - RX mode receive Bluetooth. - Built-in battery, Mic.