Sketchfab Car G7 Bluetooth FM Transmitter with USB Flash Drives TF Music Player USB Charger Compatible for All Android, iOS Sketchfab Car Bluetooth FM Transmitter USB Car Charger with Voltage Display Features:1.FM transmitter 2.LED display window 3.LINE audio input 4.Independent Bluetooth start /shutdown button 5.Support playing music by USB disk 6.Support MP3/WMA music format 7.Answer /hang up/reject/redial via Bluetooth 8.Bluetooth stereo music play 9.Call Echo Cancellation and Noise Reduction(CVC) 10.USB output.