Trasmettitore FM auto wireless Bluetooth MP3 vivavoce adattatore radio 2 caricabatterie USB
Dual USB Port Charging: The Bluetooth radio FM transmitter has 2 USB ports for charging. One USB port is 5V/3.1A. The other USB port is 5V/1A, which can read music files in the U disk, such as MP3, WMA, WAV format.