Auto10 has Bluetooth 5.0 adaptor which sync with your smartphone Bluetooth on one hand and it has a mini FM transmitting station which connects to your car FM receiver (antenna).It has an inbuilt mic on its body which allows you to take phone calls from your smartphone while driving.Got your favorite playlist in a Pen Drive or a MicroSD card? Just plug and play.Charge your USB devices with up to 12/24V - 3.4A from the USB ports so your gadgets do not run out of power in long trips.