• 1 camera and 10pcs LCD color monitor, supporting 1 building which has 10 households.You can see and hear before you're at the door.
• 7 Inch LCD press key screen,door answering, monitoring and unlock, dual-way intercom Mute door intercom with door dell kits.
• 16 different kinds of door bells chimes.Volume, brightness and contrast are adjustable. Fashion and nice design,which can also be used a decoration of your house for home improvement.
• 700TVL CMOS IR night vision high resolution door monitor camera, easy to install,wired connection stability for home security systems.
• Can be used in apartments, villas, hotels, offices, public buildings.Support video intercom 12 monitors of security & surveillance equipment

When someone press the call button on outdoor unit, it will active the indoor monitor, monitor will turn on, ring and show the video outside. So you can see who is outside,  Then you can press the response button on monitor to talk with the people outside, unlock the lock and press the response button again to end the conversion.
This 2-way communication is an inexpensive and effective way to talk with the stranger at the door without actually opening the door.
Feature:
The TFT 7 inch digital color LCD screen for monitoring.
High-resolution night vision, monitoring, calling, speaking, unlocking, remote controlling.
Hand-free intercom munication.
Brightness, Chroma, and Volume adjustable.
16-chord melody ring for option.
Indoor Monitor:
Display: 7 inch TFT LCD screen (16:9 dispaly).
Resolution: 800 X 480.
Input: AC 100-240V 50Hz-60Hz. 
Output: DC 15V/1500mA. 
Case: ABS Engineering Plastics. 
Installation:Surface mounting.
Dimension: Dimensions: 24 x 15 x 2.6cm (L x W x H).
Weight: 0.46Kg
Outdoor camera: 
Camera resolution: 700Lines. 
Camera: 1/3 Color CMOS Camera.
Built-in microphone and speaker 
Power Adapter: From Monitor, DC15V.
Viewing angle: (U/D/L/R, degree): 60/35/70/70. 
Connection: 4 cored wire (Up to 12 monitors). 
Case: Aluminum material, weatherproof.
Dimensions:122(L) x 276(W) x 45(H)mm.
Weight:0.81 kg.

Packing List:
1 * Outdoor Camera with proof shell
10 * Indoor Monitor
10 * Power Adapter
1 * connecting cable (16ft/5m)
1 * Bag of screws

1 * User manual