With incredible video quality, ease of use, and powerful networking tools, Revo Ultra is the very best that Revo has to offer. Enjoy additional professional and premium-residential features with Revo Ultra Plus™. The Revo Ultra's superb video quality is based on IP technology. The “RUP162MD8B8-4T” is a complete plug and play HD surveillance system with 16 channel IP NVR, 4TB pre-installed HDD & 16x 4MP HD Indoor/outdoor Audio Capable Cameras. 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 RUCD28-1 Vandal-Resistant Network IR Mini Dome camera and RUCB36-1AC Bullet Camera deliver incredible video quality with Optical WDR (Wide Dynamic Range), 3D Digital Noise Reduction, H.265 Compression and massive 4 Megapixel resolution, double the resolution of standard 1080p HD. The Revo cameras also come equipped with built-in Microphone for audio streaming and recording, Smart IR for superb Night Vision quality, widely compatible ONVIF conformance, 4KV surge protection and triple stream capability. Revo Ultra cameras are built for the outdoors, capable of handling temperatures as hot as 140F and as cold as -31F, rain or shine. When it comes to surveillance, every detail count. View your cameras 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.. Want to view multiple Revo Ultra units at different locations from a single computer? With Revo EZStation Software, design your own custom layout of which cameras you'd like to view with Video Wall, or even lay them out on a custom map of your property with E-Map.