1. Bluetooth version: 5.0
2. Interface: USB/AUX
3. Effective working radius: about 10 m
4. Operating frequency: 2.4 MHz
5. Transmission rate: 10 Mbps
6. Dongle+bluetooth audio receiver, fast transmission, low power consumption, good transmission sound quality
7. Plug and play, direct audio output via USB interface, built-in microphone, support voice call function
8. Size: about 5.5 x 2 x 1 cm