DP-705D & TW669
1 . 7" TFT LCD screen touch buttons design .
2 . One system support 2 outdoor stations , 2 channel analog camseras and 4 indoor units at the same time .
3 . OSD Menu , 8 languages for option .
4 . Monitor / Intercom / Unlock functions .
5 . Room to room intercom .
6 . Support Max.3 locks unlocking .
7 . Unlimited time surveillance .
8 . Built-in prower for option