With incredible video quality, ease of use, and powerful networking tools, Revo Ultra is the very best that Revo has to offer. Revo Ultra's unique design complements any home or business. The Revo Ultra's superb video quality is based on IP technology which brings the power and beauty of digital high definition video right to the heart of your surveillance. The 2nd Generation 16 CH REVO ULTRA NVR features state of the art 4K Video Output, H.265 Compression, and support up to 4K Cameras. The Mini Audio Vandal Dome Cameras feature True WDR, 3D Digital Noise Reduction, massive 4 Megapixel Sensors, double the resolution of standard 1080p HD. Smart IR LEDs illuminate the scene up to an impressive 80' in total darkness. Revo Ultra mini dome camera has a built-in microphone for Audio recording. The RUCD36-1 camera is built for the outdoors, handling temperatures as hot as 140F and as cold as -31F. View your Revo Ultra 4MP system from anywhere. Using the Revo Ultra Mobile smartphone app, simply set up an account and then scan your NVRs QR code to begin mobile viewing. Access your Ultra NVR via the web using www.myrevocloud.com, compatible with Internet Explorer. Also, you can view multiple REVO ULTRA units at different locations from a single computer using the REVO EZStation software Experience Peace of Mind with the ultimate high resolution IP technology from Revo.