7" Color Video Door Phone 1.Time Attendance,Unlock ... ,surveillance outsid Product name: Super Thin 7 Inch Color Video Door PhoneItem No.: LL-274Specifications: 1. Super thin ... 85cm, plastic camera2. CMOS camera, handfree, audio and video communication.3. Unlock, intercom, call other monitors, surveillance ... supports up to two cameras.8. Four colors for monitors: Silver, Red,Blue,White9. With functions of ...