ITEM NAME:Car Bluetooth 5.0 Receiver FM Transmitter Dual USB Lighter Charger Ciga Car R1N1 Technical Parameters: Working voltage: 12-24V Power consumption: 0.5W Working temperature: -10~70Â °C Response frequency: 20Hz~15kHz Audio format: MP3/WMA Noise ratio: 68dB Bluetooth version: 5.0 Bluetooth protocol: A2DP Bluetooth distance: 10~15 meters FM transmission frequency: 87.5~108Mhz USB output: 5V/3.1A Packing list: Car charger*1 Instruction manual*1.Bluetooth version: 5.0. Bluetooth protocol: A2DP. FM transmission frequency: 87.5~108Mhz. USB output: 5V/3.1A. Response frequency: 20Hz~15kHz.