Compatible with Win 98, ME, 2000, XP, NT Interface: USB 300000 pixels / 100000 pixels High resolution COMS color sensors Large window capture size: 640*480 Video mode: 24 bit true color Interface: USB port Transmission rate: 352*288 30F/s 40*480 15F/s Noise-signal ratio: greater than 48dB (30F/s 220LUX) Dynamic range: greater than 72dB Image focus: 6cm to infinity Build-in image compression Automatic brightness adjustment Automatic color compensation Manual focus (Optional) Microphone inside