wireless alarm feature , 3G video monitoring feature,PTZ rotation: Vertical 0°--90°,horizontal 0°--360°,8 meter IR night vision , Setup by USB,built-in 12V li-battery,support USB connection,remote monitoring via 3G video call, 1.3 Megapixel all-angel camera,support two-way talk ,high-quality IR night vision,built-in 12V li-battery(the whole system still can work after power cut),T-FLASH Card recording,wireless alarm feature,standard package: 1 3G camera(with built-in alarm module)+2 remote control+ 1 door sensor+1 siren+1 USB cabel+1 power adapter.added features: Digital zoom , adjustable brightness , voice instruction