Carg7 Bluetooth Transmitter Universal Wireless in-Car Fm Adapter Car Kit with Hand Free Call/Music Player Supported/USB Car Charger This product has fm transmitter car Bluetooth hands-free car MP3 car USB charger card recognition of the integrated function. G7 is a high-end Bluetooth car handsfree launcher, car fm transmitter, he uses a professional high-performance Bluetooth module, built-in MP3 / WMA decoder chip, U disk or TF card music files.Wireless transmission to the car audio. And, as long as your phone is equipped with Bluetooth, you can send your phone music to your car audio, call can be switched to the hands-free state, the end of the call,Will automatically switch to music playback.fm transmitter fm transmitter fm transmitter.