The Scosche BTFM4-SP universal Bluetooth hands-free car kit is perfect for making hands-free calls and wirelessly streaming music from your Bluetooth compatible device to your vehicles radio with a crystal-clear crisp sound. You can stream audio files using your device’s Bluetooth. The Digital LED Display shows the exact frequency the transmitter is tuned to for easy syncing with your vehicles stereo system. The Dual 2.4 + 1AMP USB ports on the car charger plugs into any vehicles 12V power port to power the BTFREQ and charge your device at the same time. The convenient design of the LED display provides an easy to read interface, so you know exactly what station or frequency the BTFREQ is tuned to. It’s easy to sync; just find an unused FM frequency on your vehicles stereo and match the same frequency on the FM Transmitter. It’s super easy to use Siri and Google voice on your device with the BTFREQ FM Transmitter. The FM Transmitter’s remote control allows you to safely and conveniently switch between radio stations, play/pause music or switch between the previous or next track. The Scosche BTFREQ universal Bluetooth hands-free car kit and FM Transmitter is compatible with your iPhone, iPod, Android, MP3 Player, Bluetooth compatible or any other compatible Bluetooth device. Perfect for use in your vehicle while making hands-free calls, listening to music every day or while taking a long road trip!