have a strong functions:
1.Handfree , monitor, intercom
2.Video and two way intercom
3.Door lock control
4.With hand-move alarm function
5.Video and audio output
6.COMS camera type used
7.With infared night vision
8.Auto turn off
9.Super slim and surface-mount
10.Optional multi system
11.4pin , 6pin, 260mm length cable
12.with/without  plastic casing
high quality and competitive price with good service
welcome to inquiry and order now , you can contact us:longsongame1@yahoo.cn