The Pyle PLMP3C31B is a Plug in Car MP3 USB/SD/MMC/iPod FM Modulator/Transmitter that plugs into your car's cigarette lighter. It is equipped with a 1.4" screen and SD/USB input so it's capable of playing MP3s. Plug in an SD card or USB stick with your favorite music. Best of all, it's got Bluetooth technology, so you can use this device as a hands-free kit, so you can talk safely on the road. It also charges devices via the USB port, so you can charge your cell phone. Sort through folders and place tracks or folders on repeat. The FM transmitter operates on over 200 different channels from 87.5 to 108 MHz, so you'll be able to find the perfect station for streaming your music. The screen displays relevant track information.