Product features:GT - C4 hd wide Angle field of video conference camera make industry cutting-edge work!Adopts the design of USB drive free USB power supply from domestic initiation, without external power supply, install and use more convenient.Equipped with 2.8 mm hd wide-angle lens itself.As well as well as its unique design (level 355 - degree rotation, infinite 120 degrees) to the conference room.This product is suitable for small and medium-sized conference room, desktop video acquisition, reveal the best quality and hd pictures for you.