FM Transmitter & AUX Adapter JOYROOM Bluetooth FM transmitter can be easily used in cars without built-in bluetooth.Besides, if your car has a 3.5mm jack, its AUX mode definitely the easiest way to go, it can play straight through your car (no radio frequency required) with true zero distortion sound quality. (A 3.5mm AUX cable include Three Ports Charging & LED Light Design Car Bluetooth Adapter can charge three devices simultaneously via one PD 30W Type-C and two QC3.0(18W per) USB charging ports and will auto-assign the best charging efficiency. The PD fast charging. The QC 3.0 port can charge most Android devices from 0% to 60% within 35 minutes. When night comes, LED lights can make it easier for you to find the charging port. Much Safer Driving Experience Bluetooth car adapter mounted to the air vent would be closer to your eye level. It is so nice that you don't need to lower your head. Its comparatively bigger button allows you to easily adjust without worryin