optical zoom camera 1)H.264 CCD 480TVL 2)Waterproof IP66. 3)4 ... monitoring and managing by mobile phone, alarming, viewing..no user limited , centralized monitor, remote record and playback , Skype message ... ,9,16,25,36, 64,81-channel , no user limited , centralized monitor, remote record and playback , Skype message ... x 120 (L*W*H)Package size403 x 150 x 162 (L*W*H) New type h.264 optical zoom camera ...