803 Bluetooth FM MP3 Player Bluetooth Calls Car Charger Hands-Free Calls Music Player Cigarette Lighter Adapter Support Bluetooth/TF Card/U Disk 3.1A USB ports for fast charging devices, also support 5V-3100mA USB charging, which makes your device gets fully charged in a short time With the built-in microphone, this Bluetooth FM transmitter enables you to make Bluetooth calls You can use multi-function button controls call and music, you can stream music directly from your car radio via Bluetooth/TF card/U disk With LED display for helping monitor the frequency point in real-time Memory design, it will automatically connect to its memorized paired Bluetooth device when power on This sophisticated structure design make it more durable and easier to adapt to the cigarette lighter Specification: Bluetooth version: V5.0 Interface: high-speed USB2.0 Screen: LED screen Supported U disk capacity: 16GB Supported TF card capacity: 32GB Power supply: DC12V-24V Supported file types: MP3 Working current: 45mA DC12V Bit rate: 64-320 kbps FM frequency range: 87.5-108MHz (100KHz step) Signal-to-noise ratio: 85db (FM: 65db) Harmonic distortion: