The Ultra HD NVR Surveillance System delivers exceptional video quality and reliable security for your home or business. Utilizing advanced IP technology, this system brings the clarity of digital high definition video to your surveillance needs. The 4 Channel NVR features 4K Video Output and H.265 Compression, supporting up to 4K cameras. Included are four indoor/outdoor bullet cameras with 4 Megapixel Sensors and IR arrays providing illumination up to 100 feet in total darkness. View your cameras remotely using the Ultra Mobile smartphone app or access the NVR via the web for convenient monitoring from anywhere.