DUAL USB CHARGING STATION:Equipped with 2 USB ports, One USB port\'s maximum output is 5V/2.1A. Another is 5V/1A. One Can Read USB Sticks as well (The top one). Flexible Rotations and Convenient Power On/Off. You can rotate the LCD display screen in 270-degree and tilt the gooseneck for optimal viewing comfort. Power on/off function saves your efforts of plugging or unplugging every time you start and go off your car. LARGE LCD DISPLAY:1.44in LCD display screen clearly shows your car voltage when plugged in, phone number for incoming call and song name when stream music from U disk or TF card. Hands-free Calling:With Built-in microphone, the Bluetooth FM transmitter enables you to answer, hang up, reject a call or redial the last number with ease. Furthermore, the transmitter will automatically connect to its last paired Bluetooth device when powers on next time. EASY TO USE: Just plug the FM Transmitter in the car cigarette lighter, control it and the car radio at the same frequency (frequency range from 87.5 to 108 Mhz). Then let your phone/audio player connects this FM music gear via bluetooth/audio line. Use flexible hose and flexible joint,Can change to any angle and face to any people in the car.