The following parameters can only be applied to the 2501-S2 series. - Resolution up to 5MP@25IPS. - 2.7-13.5mm (31.4°-113°x17.6°-58°x36°-138°(HxVxD)), F1.6 motorized optics. - 4 in 1 camera. Supports HDCVI, AHD, HDTVI and CVBS. The four formats can be switched via OSD menu or DIP Switch. - Microphone included. - Power / Consumption: 12Vdc (Max 10.7W). - Dimensions and weight: 244.1x90.4x90.4mm / 0.76Kg. To use the 5MP 16:9 HDCVI camera, the XVR firmware must be upgraded to version V4.001.0000001.0.0.R.200908 or later.