* Color video intercom by handsfree , monitor and unlock
* More than 10 melodies for ring selection
* To sure the image clearly at night by IR LED
* Accepted to be connected with four indoor phone at most to different floor each user
* Unlock by card (ID or IC card) is optional
* Installation of door station by surface and flush to be optionalMin. illumination: 0.1 lux
* Card capacity: 64
* Intercom time: ≤120s
* Distance: 100 m