Description This camera is a complete DVR system solution. It has functions of real time viewing (video out), real time video recording on built-in Micro SD-Card storage (Memory Card is not the Part of Listing), night vision and cycle recording. * Simple operation, just insert a Micro-SD card, plug into a wall power socket, it will auto start video recording, if you want to view real time images, connect the video output to a monitor. * BNC Video output interface (BNC converter included) * Motion Detection, recording video when object motion being detected, it can save storage spac * Circular recording, when storage (Micro SD-card) is full, new video file will replace the first one, second, third and so on, never worry about run out of storage. Files will be saved in 30mins per file * Built-in infrared LEDs, 24 IR LEDs are built-in, clearly see objects in dark environment or at night time * Using external storage media, support Micro SD-card, video files are stored inside, Max. support up to 8GB (recommend using good quality cards, and the machine does not include a card by default) * A 8GB Micro SD-card can store upto 24hrs video files * 3.6mm camera LEN by default, the viewing angle is around 72 degree * To playback video, just take out the card plug it into computer (a card reader is included), recommend using VLC media player Facts As per my Experience: 1. Night Vision is not Excellent but Good with Reddish Color. 2. Motion Detection Facility is not so Good. Recommend not to use. 3. Record with Audio & Video. Audio is very good. 4. There is no better quality Camera available in the world with Memory Card Slot. Features For Indoor Use Night Vision Feature No of Channels: 1 Thank You!!! For More Details School Management Video