1Multifunctional Design: Car charger features car Bluetooth, MP3 playback, Fm transmitter, and dual USB charging ports, catering to various needs. 2Large Screen Display: The large sized screen of the car charger displays information, making it convenient for car operation and reading at night. 3Hands Free Calling: Car power adapter with built in handsfree calling function allows you to safely answer and make calls while driving. 4Excellent Quality Music: You can enjoy great quality music playback experience by connecting your phone via car Bluetooth MP3 player. 5Universal Fit and Convenient to Use: Car charger adapter is easy to install and compatible with various car models, making it user friendly.