Smallest 7'' TFT VDP with Basic Funtion (M2107ABM)

Basic 7"LCD Color Monitor
Hands-free villa video door phone
4 wires connection
Intercom function
Door monitoring function
Lock control
Call transfer to the other monitor
Internal-communication;
Color Contrast, Brightness adjustment
DO NOT DISTURB setting
Visitor-call transfer
Indoor monitor listening function
Image format convert 16: 9 to 4: 3
Broadcast function
Answer machine function;