

| USB Version | | | | | ||||
| USB plug-and-play(USB direct power supply) | | | | | ||||
| 3W speaker+ double vibrating membrane | | | | | ||||
| Echo cancellation,double talk, noise reduction | | | | | ||||
| Bluetooth version | | | | | ||||
| Bluetooth 5.2 wireless connectivity | | | | | ||||
| USB Plug and Play | | | | | ||||
| 3W speaker + double vibrating membrane | | | | | ||||
| Echo cancellation, double talk, noise reduction | | | | | ||||
| Battery docking station(optional) | | | | | ||||
