With this Bluetooth transmitter, you have the ability to play your favorite music stored on a USB Flash or memory card via FM. Place it in the cigarette lighter socket in your car, connect the USB flash or memory card or even via Bluetooth from your mobile phone, and enjoy your favorite songs through an empty station on your car radio. It also allows phone conversations through the car speakers while driving, without holding the phone in your hands or having wired handsfree, simply by connecting the phone's Bluetooth. It features a wireless remote control, SD Card slot, micro SD, USB Port, built-in music management and call answering buttons, and a display. Frequency range: 87.5 - 108MHz