B32 2 in 1 Bluetooth 5.0 TV Computer Wireless Audio Bluetooth Adapter Bluetooth Transmitter Receiver Main feature: 1. Beautiful appearance 2. Adopt Jerrys high-performance chip design 3. Built-in rechargeable battery, can work for a long time 4. The product is simple to connect, without any tedious driver and APP download 5. Small size and no space requirement The main parameters: 1. Bluetooth version: Bluetooth V5.0 2. Support protocol: RX: A2DP, TX: A2DP 3. Working frequency band: 2.402GHz-2.480GHz 4. Power level: Class II 5. Audio coding: SBC 6. Working current: RX is less than 22mA, TX is less than 35mA 7. Built-in battery: 200mAh 8. Charging current: about 200mA 9. Charging time: about 2 hours 10. Life time: RX is greater than 7H, TX is greater than 5H 11. Bluetooth distance: greater than 10m (open space) 12. Charging method: Micro USB 5V 0.5A 13. Input output connection: I2S AUX interface 14. Compatible: Android, IOS system mobile phones and iPad, and Bluetooth speakers or headphones that support A2DP protocol 15. Button function: (see the instruction manual for details), on off: long press the button 3S to turn on, the indicator light will be on. Shutdown: In the power-on state, long press the button 3S LED to turn off the power 16. Mode switching: during start-up, it can be hot switched by mode switch 17. Dimensions (bare metal): 44x44x12 mm 18. Weight (bare metal): 18g Packing list: Host x 1 3.5mm audio cable x 1 Micro USB power cable x 1 Operating Instructions x 1