BT-305 Car MP3 Bluetooth Player FM Transmitter with Hands-free Calling (Black). With this car MP3 player FM transmitter, you can quickly and easily transmit your favorite tunes from a portable music player to your car stereo. It supports TF card reader and USB flash drive, FM transmitter and hands-free calling. Get this Daily Deal - Save 22% OFF For MP3 Bluetooth Player FM Transmitter. With Free Shipping@Focalprice.com.