1. Chip: BR8651
2. Bluetooth version: 5.0
3. Frequency range: 2.4GHz
4. Transmission distance: 0-10 meters
5. Rated voltage: DC 5V
6. Interface type: USB
7. Operating system: Windows XP, Windows 7, Windows 8, Windows 8.1, Windows 10 (Windows 8 or above system without driver)
8. Product size: 17 x 7.2 x 22mm
