[Support USB port Back up & NO Hard Drive ]-- Gives you the easiest option of backing up and transferring your video footage to a USB flash drive. Without HDD, you could only see live footage on monitor and TV. Not able to set up recording, playback as well as backup video. [Smart Motion-Triggered Alerts]-- Whenever the camera captures motion events, you can receive instant email alerts and app pushes, knowing what is happening and taking proper actions immediately. Mark out the vital areas, like backdoor and garage, then you can get more accurate alerts. [Easy Remote Monitoring]-- With the free SANNCE Smart App, you can have easy remote control over the security system. Just download the app and scan the QR code to add devices, then you can watch live view whenever from anywhere. [H.264+ Video Compression]-- The H.264+ coding standard reduces the bandwidth required for data transmission, providing smooth video streaming. Also, the H.264+ codec condenses the video files and lowers storage space requirements. [Powerful 5-in-1 DVR & 5MP HD Stream]-- The hybrid digital video recorder works with up to 5MP TVI, AHD, CVI, CVBS analog and up to 2MP IP security cameras. You may add any type of security camera you want to this DVR for 24/7 recording.