Smallest 7" Vdp with Build-in Power (M2107BCR)

Features:
1. Support recording with SD card
2. Support multimedia and photo frame
3. Mechanical keys feel comfortable
4. Hands free design
5. Support call transfer
6. Alarm clock and calendar

Special function:
² Call transfer to telephone.
² Door monitoring function;
² Call transfer to the other monitor;
² Internal-communication;
² Color Contrast, Brightness adjustment;
² DO NOT DISTURB setting;
² Visitor-call transfer;
² Indoor monitor listening function;
² Broadcast function;
² Image and video captured;
² Video door phone with DVR function;
² Multimedia function

Solution:
L Solution 1: 2 doorbells + 4 monitors + 2 CCTV cameras
L Solution 2: 1 doorbell + 2 monitors + 3 CCTV cameras