3 in 1 - Combine high definition full HD 1080p video camera, 4 omnidirectional microphones arrays and speaker for online vedio conference. No other os needed.^ Noise Cancelling & Auto Echo Cancellation - Built-in noise reduction technology, 4 omnidirectional microphones arrays keeps pesky background noise out of videos. ^ 90 Wide Angle of View - Wide enough to capture teams and whiteboards with ease. Idea for online team business meetings, family group meetings.^ No Focus Adjustment - Constantly, ultra-widely focus everything range beyond 1.97 inches. No need to worry about the instability and fuzziness. Comes with a magnetic cover to protect the lens.^ Universal clip fits all laptops, LCD or monitors, also can be used with a tripod. Please dont use this PC camera with USB hub because of insufficient current.