USB interface, plug and play. Supported operating system: Windows 2000/XP/Vista/Win 7, Mac OS 10.4.6 or higher (but if your system doesn't support plug and play, please install the software CD). 360 degrees rotatable function, all angle is available. Built-in miniphone, supports AIM, Net meeting, AOL, MSN Messenger, Skype, etc. High Resolution CMOS sensor gives perfect image quality. Manual adjustable focal length. With a clip stand, suitable for both laptop and desktop. Auto exposing control, auto white balance, auto color correction. Compatible with USB 2.0 / 1.1. Image sensor: CMOS Maximum dynamic pixel: 5.0M pixels (352x288, 640x480, 1280x1024, 1600x1200, 2048x1536, 2560x1920) (with software boost/ upscaling) Maximum static pixel: 50.0M pixels (640x480) The focal length: 8cm-infinity Frame rate: 30fps S/N ratio: Above 48dB Cable length: Approx. 115cm / 3.77ft Item size: 5 * 6 * 4.5cm / 2.0 * 2.4 * 1.8in Item weight: 66g / 2.3oz Package list: 1 x Webcam 1 x CD driver Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.