Support 3g/wcdma frequency With 300k pixels cmos sensor. Built in ir red, support wireless video surveillance 24 hours. Built-in pan/tilt, horizontally 270°, vertically 90°, Support sd card(max 32gb) Arm/disarm and emergency alarm by remote controller Excellent wide dynamic function, wdr=100db Control program the system(like set language) by sms commands. Sms, mms, call and video phone automatically while alarming Support magic rotation 88wireless guarding zones, wireless alarm sensors inputs(315mhz or 433mhz) Send sms and call to 10 mobile phones automatically while alarming. Adopts wireless signal transmission, no need to connect to wire and easy for installation. Support motion detecting and video call anywhere and anytime.