Features: Brand new and high quality. USB3.1A dual charging ports realize charging while listening to songs. Bluetooth 5.0 version supports Bluetooth audio playback, voice navigation, and Bluetooth hands-free calls. Supporting Bluetooth/U disk, plug and play. Full-frequency FM wireless transmission technology can directly read audio files on Bluetooth mobile phones/U disks. That the LED screen monitors the voltage in real time makes driving safer. Supporting power-off memory function. The smart chip provides multiple protections such as overcurrent, overcharge, overtemperature, overvoltage, short circuit protection, and anti-combustion, making it safer to use. Suitable for all vehicles with voltages of 12V-24V. Specifications: Material: ABS Bluetooth version: BT 5.0 Effective distance: 10m Charging interface: USB 3.1A+1.0A Charging current: 5V/3.1A, 5V/1.0A Voltage: 12-24V Transmitting frequency: 87.5MHz-108.0MHz Functions: Dual USB charging, U disk, FM, Bluetooth music, hands-free calling, Bluetooth navigation, LED voltage detection, etc. File type: MP3/WMA/WAV/FLAC Suitable car mode: 12V-24V car, SUV, truck Size: 36 x 47 x 79 mm Color: Black Package Included: 1 x Car charger