Features:

FM transmitter 

LED display window 

LINE audio input 

Independent Bluetooth start /shutdown button 

 Support playing music by USB disk 

Support MP3/WMA music format 

FM transmitter  with LED display window and LINE audio input  with Independent Bluetooth start /shutdown button which Support playing music by USB disk. It also Support MP3/WMA music format, Answer /hang up/reject/redial via Bluetooth and bluetooth stereo music play. It enhances Call, Echo Cancellation and Noise Reduction(CVC). Dual USB output voltage which provides power to other devices up to 5V/2.5A.