Feature [ LARGE SCREEN & BROAD COMPATIBILITY ]: Car FM transmitter comes with 1.4inch LED screen can display phone number for incoming calls & name of songs playing through TF Cards could be displayed as well and works with Bluetooth enabled devices, or with 3.5mm audio jack [ REMOTE CONTROL & MUSIC PLAYING ]: Support with 21-key remote control for the FM Transmitter, everyone in car can control music playing or calls freely.Full 206 channels optional from 87.5-108.0MHz [ HANDS FREE & HIGH PERFORMANCE ]Answering/redialing/dismissing or ending call just simply click a button by remote control.Moreover, it supports voice navigation of your phone [ CHARGING STATION ]: This car FM transmitter Bluetooth comes with a 5V-1.1A charging port to charge most USB devices. SpecificationSupported file formats: WAV, MP3, WMAFrequency: 20Hz-15KhzVoltage: 5V +/- 0.5Lighting voltage: 9-26VTransmission frequency: 87.5-108MHzUSB charging port output: 5V/2.1ABluetooth-compatible version: version 5.0 Packing list:1 x FM Bluetooth-compatible MP3 player1 x Remote control1 x audio cable1 x instruction Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.