Receive frequency:two cahnnel (2414 GHz,2468 GHz) Open Distance: 50-100m Power adater:DC12V/500MA size(mm):91x45x120 "Image Device: 1/3" CMOS Horizontal Definition: 380 line Minimum Illumination: 0 lux Infrared light number:30PCS Infrared distance: 8-20m Open Distance: 50-100m Power adpater: DC12V/500MA Size(mm):56*60*45 Image Device: 1/3" CMOS Horizontal Definition: 380 line Minimum Illumination:3 lux/F1.2 Open Distance:50-100m Power adapter: DC8V/500MA Size(mm): 20*20*20"