16 Channel DVR which supports HD-TVI, CVI, AHD and Analog Cameras up to 5MP. Real-time surveillance: HD video viewing and recording. Multichannel playback function as well as searching and downloading. 16TB Pre-Installed Hard Drive enables DVR to record 24/7, although device supports the following recording modes: Continuous / Manual / Motion / Schedule. User friendly, easy to setup remote viewing on your smartphone (Xmeye App), Tablet or PC (CMS Software). You can enjoy live video from anywhere as long as you have internet connection. Motion detection & Email alert function: by customizing settings you can use this function to receive email alert when there is an unexpected motion detected. USB Backup function for transferring your video footage to USB Flash Drive. 1 Year Warranty and free technical support.