General description ANNKE 4 Channel POE NVR Security Camera System offers a comprehensive surveillance solution with 5MP Super HD resolution and color night vision capabilities. This system includes three high-quality cameras designed for both indoor and outdoor use, featuring IP67 weatherproof ratings to withstand harsh environmental conditions. The built-in microphone allows for audio recording, ensuring that you capture both video and sound for a complete security experience. Technical specifications Camera Image Sensor: 1/3" Progressive Scan CMOS Main Stream Max. Frame Rate: 50Hz: 20 fps (2592 × 1944, 2560 × 1440), 25 fps (2304 × 1296, 1920 × 1080, 1280 × 720); 60Hz: 20 fps (2592 × 1944, 2560 × 1440), 30 fps (2304 × 1296, 1920 × 1080, 1280 × 720) Substream Max. Frame Rate: 50Hz: 25 fps (640 X 480, 640 X 360, 320 X 240); 60Hz: 30 fps (640 X 480, 640 X 360, 320 X 240) Video Compression: H.265+/H.265/H.264+/H.264 Audio Compression: G.711ulaw/G.711alaw/G.722.1/G.726/MP2L2/PCM/AAC