BR11 With Screen Bluetooth Audio Receiver MP3 Player 1. Bluetooth version: 5.3 2. Transmission distance: about 15m 3. Battery capacity: 240mAh 4. Charging time: about 2h 5. Use time: about 12h 6. Charging interface: Type-CUSB-C 7. Charging voltage: 5V 8. Packing list: receiver x1, charging cable x1, audio cable x1, adaptor x1 Features: 1. Bluetooth 5.3, low power consumption and stable transmission, clearer sound quality 2. Power on automatically connect back to the paired Bluetooth devices 3. Five minutes no device connection, automatic shutdown 4. Support Bluetooth stereo music DSP technology 5. Wake up voice assistant function 6. Bluetooth call with DSP noise reduction 7. Can be connected to two cell phones at the same time 8. Synchronize cell phone time, 24H time display 9. Receive Bluetooth signal, through AUX audio interface to stereo, headphones and other devices 10. Plug into the car AUX port, so that the car stereo into car Bluetooth