Features:  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 microphone， 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.  Specifications:  Color: Blue  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 (2560x1920， 2848x2800， 3648x2736， 4000x3000， 6000x8000) (with software boost/ upscaling)  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 size: 11 * 8.5 * 6.5cm / 4.3 * 3.3 * 2.6in  Package weight: 95g / 3.4oz  Package list:  1 * Webcam  1 * CD driver