... Channels BNC 3. 2 CH Audio, alarm CCTV 16 CH with ptz alarm 2ch audio with button model KT7116EC 1. Operating system:Embedded ... ,NTP agreement.23. IE Browser, client software: Support24. CMS: Support(One software for at most 50 DVR ),Free supply to use ... . 5 pcs to one carton, carton size: 520*470*310mm, weight: 19kg CE ROHS CCTV security 16 CH DVR 2ch audio model KT7116EC