Features: Built-in microphone, you can hear the voice clearly in 10 meters. Left right 360 degree and up down 30 degree rotatable, you can adjust the angle as you like. Fine quality optical lens, high-precision and NO distorted pictures. 360 degrees rotary function, all angle is available. Suitable for liquid crystal display screen and laptop 2 LEDS night-vision effect is better, controlled by a Line switch , convenient to use Auto white balance, auto color correction, manual adjustable focal length. Support Windows2000 / XP / win7 / win8 / Vista 32bit etc. Suitable for video calling with your family/friends, Video conference with your leadership and colleagues, Weekly meeting online, Learning and teaching online.