This is an A20P Wireless FM Transmitter and car charger.
It features dual USB ports, providing 3.1A and 1.0A outputs for charging devices.
It supports hands-free calling via Bluetooth with a built-in microphone.
Music can be streamed wirelessly from a phone or played from a TF card or USB disk.
The device transmits audio to your car's radio via an FM frequency, which is displayed on the LED screen.
It is compatible with all types of vehicles.