Security camera which includes CCTV camera, DVR and sd card storage all in one set. It can record without an additional micro-SD Card DVR and is an indoor complete video monitoring system with video recording, infrared night vision, and circulating storage. Features MPEG4 compression-- Record at smaller video size for longer recording days. Circularly recording--Overwrite old videos once the card is full. Continue to record 10s after power is off.