Features: 1) Direct calling and dual talking 2) Real time monitoring door station 3) Remote control electrical lock 4) 3 chord chimes 5) Al-alloyed door station and handfree monitor 6) Both CCD Color and CMOS Color are available Specifications (outdoor camera): 1) Resolution: CCD 420 TV Line, CMOS 380 TV Line 2) View angle: CCD 92o, CMOS 78o 3) Lowest luminance: 0.02Lux 4) Power Source: From Monitor 5) Power consumption: 2W 6) Appearance size(H x W x D): 200 x 130 x 40mm 7) Mounting size(H x W x D): 185 x 110 x 35mm Specifications (indoor monitor): 1) Display screen: 4.2-inches TFT LCD 2) Resolution: 480(h) x 234(v) 3) Screen size: 84mm x 64mm 4) Talking way: Handsfree 5) Power consumption: Standby 0.5W, Operation 10.5W 6) Appearance size(H x W x D): 220 x 195 x 70mm 7) Power: Built-in power supply Packing: 1) Quantity/carton: 5pcs/carton 2) Carton size(L x W x H): 450 x 450 x 310mm 3) Gross weight: 16.5kg.