タイトルまたは説明

1) View and talk with the visitor and let them in by pressing the unlock on Video Door Phone and electric door strike required.
2) Door chime.
3) Real-time dual communication.
4) Repress the monitor on the indoor monitor to turn off monitor function
or transfer to another monitor channel and the screen auto off after *0 seconds.
5) Brightness, contrast and ring volume are adjustable.
6) Built-in infrared LED for night vision.
7) Option to install extra camera or monitor to increase monitored area(unless otherwise noted).
8) Installation: Wall mount except other purticularly stipulated.