Key Features Aluminum alloy panel of indoor unit fashionable and luxury Water and oxidation proof durable aluminum alloy made outdoor station inch color TFT LCD No radiation low power consumption and high definition Handfree intercom Electric lock control function‎.‎Monitor the view out of the door 16 kinds of rings for your options Volume brightness and contrast adjustable With switch adapter and 5m cable users could install it by them self Indoor unit (inch): 7"System: PAL/NTSCPixels: 960x480 Indoor unit dimension(mm): 260 x 165 x 30mm Net weight(g): 650gPower supply: dc15v/1200maPower consumption: 6wDelay calling time(s): 120s±10%Delay monitoring time(s): 60s±10%Valid distance: 80m(4*0.65mm²)Working temperature(℃): -10℃～+50℃Storage temperature(℃): -20℃～+60℃Outdoor unit dimension(mm): 126x56x33mm Camera type: 1/4 color cmos or color ccd Net weight(g): 40g Pixels: PAL:628x582 NTSC:510x492Power consumption(w): 2w Resolution: >420 lineSystem: PAL/NTSCFocus(mm): 3.6mm Viewing angle(°): 92°IR distance: 3 m6 IR lightsCable for monitor: 1.5m.