Peyou - Wireless Bluetooth Music Hands-free Calling FM Transmitter USB with Car Charger Full frequency FM transmitter; Digital Display; Support Line audio Output; Support U Disk Player. *FAST SHIPPING 7-15 DAYS* Bluetooth answer hang up, reject, redail calls and other functions; Support MP3, WMA format music Echo Cancellation and moise suppression(CVC) technology during a call Support dual USB output voltage, the maximum output 5V / 2A Automatic power-off memory function