optical zoom camera 1)H.264 CCD 480TVL 2)Waterproof IP66. 3)4 motion detection,27X Zoom 4)Two-way audio ,Smart Phone ... compression.1/4inch 480tvl SONY CCD sensorNo need to install software, Multi-screen monitoring and managing by mobile phone, alarming, ... ,Android OS,Symbian OS,WindowsPhone7)Mobile PlatformNo need to install software, Multi-screen monitoring and managing by mobile phone, alarming, ...