miniature dvr: heat detective recording real-time monitoring and watching built in 128M storage, support SD card Miniature dvr Description:Good coverture with night vision Items QH-6602StyleNTSC / PALImaging sensor1/4 CCDHorizontal Resolution420 TV LineView Angle120°Built-in lens3.7 mm pin hole lensS/N RatioMore than 48dBPower SupplyDC 5VConsumption Current250Ma ~550MaBuilt-in Battery3.7V, ...