Safety Vision's police in-car patrol video system includes the PatrolRecorder 4C mobile digital video recorder (MDVR), a 5.6 inch LCD monitor, a color zoom camera, a cabin-mounted camera, and a wireless audio unit. The PatrolRecorder 4C is a compact and rugged MDVR that supports four cameras for comprehensive viewing coverage. It records high quality digital video on a mobile-rated removable hard drive. The 5.6 inch LCD monitor supports two water-resistant cameras, giving officers complete coverage of the area surrounding the vehicle. The color zoom camera has a 1/4 inch image sensor. The cabin-mounted camera has a 1/3 inch image sensor, fixed lens, and a shutter speed of 1/60. The wireless audio unit has 40 channels and a range of 1,000 feet. The PatrolRecorder CF (compact flash) and the PatrolRecorder RHD (removable hard drive) are optional MDVRs with this system.