Car Bluetooth 5.0 FM Transmitter Wireless Hands-free Audio Mp3 Player Adapter USB + Type-C Fast Charging Fm Modulator Working voltage: 12-24V Bluetooth version: 5.0+EDR Transmission distance: 5-10m Support format: MP3WAV FM frequency: 87.5-108.0MHz Working temperature: 0-55℃ USB charging output: 5V 3.1A+5V 1.0A Other charging ports: Type C 5V 3.1A