Feature: 1, Built-in mircrophone for audio monitor 2, High quality picture 3, 100m transummission distance without block 4, Can be used on TV, VCR, and other monitor 5, Suitable for theft prevention, surveillance, home security Specification: 1, Image Sensor: 1/3" SONY HAD color CCD 2, Picture Element: PAL:752(H)?582(V); NTSC:768(H)? 492 (V) 3, Horizontal Resolution: 480 TV Lines 4, Sync Mode: Internal Sync 5, Scanning System: 2:1 interlace 6, Video Output: 1.0Vp-p, 75 7, S/N: 48dB] 8, Minimum Illumination: 1.0 Lux/F1.2 9, Iris Control: Video/DC IRIS 10, Power Source: DC 12V ?10%