Full Duplex Speakerphone - Both you and the other end of the video call friend can get a professional-grade audio conferencing experience, the full-duplex function can provide barrier-free video meeting calls for you and your friends. Extra Dual Hub - Conference room speakerphone can provide more conveniences, Don't worry if the USB port is not enough or difficult to operate on your UC device, you can easily connect a mouse, keyboard, U-disk, and other devices on this speakerphone.