This car charger is multifunctional, it has Bluetooth function and can be connected with your mobile phone to play any music you like. It also has colored lights to add some atmosphere. The operation of this car charger is very simple, you can answer or hang up a call with just one button, and can adjust the volume and frequency. This car charger is highly compatible. It can be compatible with various mobile phone applications and systems, and it can also be compatible with different types of cars, which is very practical