Features:1. This product has the comprehensive functions of fm transmitter, car Bluetooth hands-free, car MP3, car USB charger, and card recognition.2. G7 is a high-end Bluetooth car hands-free transmitter, car fm transmitter, it uses a professional high-performance Bluetooth module, built-in MP3/WMA decoding chip, can transfer music files in U disk or TF cardWireless transmission to the car stereo. And, as long as your phone is equipped with Bluetooth, you can transmit the music in your phone to your car stereo, and the incoming call can be switched to the hands-free state. When the call is over,Will automatically switch to music playback.