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 RUCB28-4A Bullet Camera is based on IP technology. IP, or Internet Protocol, technology brings the power and beauty of digital high definition video right to the heart of your surveillance system. The RUCB28-4A is loaded with state of the art features like active deterrence, Built-in Microphone & Speaker, Artificial Intelligence, True WDR, H.265 Compression and Smart IR LEDS. The massive 4K (8 Megapixel) Sensor, four times the resolution of standard 1080p HD delivers amazing video quality. The RUCB28-4A comes equipped with Built-in Speaker and Microphone for 2-way audio communication. The active deterrence function will ward off intruders by turning on the bright LED lights and siren. The SMART IR LEDs strongly and evenly illuminate the scene up to an unprecedented 100' in total darkness. Smart IR adjusts IR Array intensity for just the right amount of IR illumination at any given time so night vision quality is unmatched. The 2.8mm wide angle lens provide 105 degree of coverage. 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 counts.