Product Description Features: 1) Built-in FM transmitter 2) Read MP3 file from the USB flash disk directly and broadcast through the car FM tuner 3) Line-in function that enables you to enjoy music from the external audio device, such as CD, and MD players 4) Four functional keys: play / pause, prev / v-, next / v+, and CH 5) Adjust channels within 87.7 - 88.9MHz or 106.7 - 107.9MHz 6) Car cigar socket power supply (12V DC power) 7) USB1.1 interface with high transfer speed 8) 7 green LEDs that indicate 7 preset channels 9) 1 red LED which indicates work state (play or pause) Model: FM-186 Standard: CE, FCC, ROHS Origin: China Packing: 50pcs per carton Min. Order: 1pcs Transportation: Air, Sea, UPS, FedEx, TNT, EMS, DHL etc