Features: 1. Bluetooth, FM audio transmission 2. Support QC3.0, QC2.0, FCP, AFC, 3. Support Bluetooth phone, voice, music, navigation 4. Support output over-voltage protection, short-circuit protection, over-current protection, over-temperature protection. Product specification: 1. Bluetooth version: 5.3 2. FM frequency: 87.5 MHz-108.0 MHz 3. Bluetooth effective distance: 10 metres 4. Input voltage: 12V-24V Operating instructions: 1. Insert the device into the car lighter after the vehicle is started 2. The device automatically turns on after insertion 3. Charge the device directly with the connecting cable at the charging port. 4. Turn on the car radio and tune it to a blank FM channel. 5. Tune the device to the same channel as the car radio. 6. Open the Bluetooth of the smart device to search for BC97 Bluetooth name, and click to connect. 7. After successful connection, you can , navigate or make or receive calls. Color: Black Material: ABS Package Contents: 1 x Charger Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.