1. TVI / AHD / CVI / IPC / Analog 5 in 1.2. Transmission distance upto 500M by coaxial cable 75-5(or above)3. Support P2P 4. Support mobile surveillance 5. Support UTC function:Control AHD/TVI Camera & PTZ Spped Dome camera via DVR by Coaxial Cable6. Support Cloud Storage (Dropbox / Google Drive)7. Advanced time bar playback function can make playback exact to a second8. Digital zoom function in both preview & playback9. Support Built-in free DDNS10. Support mobile hard disk backup11. Support 3G wireless Dongle12. Support Face Detection & Perimeter Detection (Optinal)13. Free HDD1TBอ่านเพิ่มเติม