Stable TransmissionReliable Bluetooth 5.1 and FM connection can stream music directly from your phone to your car's audio system. And support AUX audio lossless input.FAST CHARGINGThe device TYPE-C PD30W & QC 3.0 port can charge the driver and passenger simultaneously at high speed.Better Hands-Free CallsBluetooth 5.1 provides a stable connection, and the echo cancellation function reduces background noise for clearer calls.Clear SoundJust find an unoccupied station (Support 88.1-107.9 Mhz), enhanced FM signal and static cancellation technology can play a great listening experience.Package includes 1x fm transmitter bluetooth car 1 X User Manual (packed in cardboard box) Product size 75.5mm*39mm