Ideal for home and business looking for coverage up to 16 cameras. HD video viewing and recording. Multichannel playback function as well as searching and downloading the footage. 2TB Pre-installed Hard Drive enables DVR to record 24/7, although device supports the following recording modes: Continuous / Manual / Motion / Schedule. Compatible with 4 types of security cameras: (1080p/960p/720p) TVI, AHD, CVI, and Traditional analog cameras. It supports up to 1080P high clarity video recording. NOT Compatible with SDI Cameras or Over 2.4mp Cameras. PC/tablet/Smartphone (Android/Iphone) remote viewing with easy installation guide included (Goodeye or XMeye Free Apps for mobile phones) 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. you can transfer video files to back-up media via USB port. One Year Warranty and free technical support.