WORLDIGITAL Wireless Bluetooth FM Transmitter Radio Adapter In-Car Vehicle FM Modulator With Cigarette Lighter Supports USB Charger ,Micro SD Card,FM Transmitter ,Music Playing ,Hands-Free Calling Compatible with your smartphones, tablets or MP3 players through Bluetooth; Adjust random the angle, suitable for different vehicles, and CVC technology cancel echo and reduce ambient noise Enjoy hands-free calls, music playing, USB charging, FM transmitter, automatically power-off memory and more functions; Full frequency range from 87.5 to 108Mhz, can satisfy your need and preference for different frequency channels.