Key features: 1.Definition:Hardware 480K pixels(640*480),Support 500M pixels vision effect (you can select), 2.CMOS Chip Type:High-resolution Color CMOS image sensor 3.Hi-resolving power:640*480/ 320*240 4.Video Format:24-bit true color 5.Imterface:USB port 6.Built in Microphone(you can select) 7.Transmission frame Rate:30 frame/sec 8.S/N Ratio:greater than 48db 9.Focus range:3cm to infinity
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