Bluetooth Hands free Car Kit MP3 Music Player FM Transmitter Wireless Adapter Radio Receiver with Quick Charge 3.0 Car Charger for iPhone, Samsung Galaxy ZTE LG Nexus Pixel Android Smartphone iPad Build in Mic, Hands free talking & A2DP Music Playing: Support Bluetooth hands-free phone calling via its built-in microphone. Support A2DP function. Music will be played directly while the mobile phone is connected. Dual USB Charger with Quick Charger 3.0: Built-in dual USB Charger output, 3.1A USB port support smart charging, it is available for charging most kinds of devices in car. Car Battery Voltage Display: LCD display of frequency and voltage. English voice number prompt. Frequency: 87.6-107.9MHZ: With a support of FM channels, this car MP3 wireless FM transmitter lets you take a break from your regular music. Easy to USE: Plug the MP3 player into cigarette lighter of your car directly, easy to use and carry.