The following parameters can only be applied to the 2501-S2 series. To use the 5MP 16:9 HDCVI camera, the XVR firmware must be upgraded to version V4.001.0000001.0.R.200908 or later. - Resolution up to 5MP@25IPS. - Motorized optics 2.7-13.5mm (31.4°-113°x17.6°-58°x36°-138°(HxVxD)), F1.6. - 4 in 1 camera. Supports HDCVI, AHD, HDTVI and CVBS. The four formats can be switched via the OSD menu or via the UTC driver. - OSD menu accessible from the DVR. - Built-in microphone. Audio input. - Power / Consumption: 12Vdc (Max 7.9W). - Dimensions and weight: Φ122x104.8mm / 0.60Kg.