7 inch Wireless Touch Key Video Door Phone Intercom Doorbell System IR Night Vision Dual-way Hands Free Talk 1-Camera 1-Monitor 
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, a postman? a neighbor? a salesman? an old friend? or a burglar? 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. 

Main Functions:
2.4GHz digital frequency ensures strong and stable signal transmission..
7 inch TFT color display (16:9 display),Resolution: 960 * 480.
700 TV Line 1/3 CMOS Viewing angle 92 degrees camera.
Clear night vision can capture image in low-illumination environment.
Surveillance, wireless unlock, hands-free call and talk.
Rain shield for the outdoor camera.
12 kinds of door bell rings for your options.
Lithium battery is replaceable and rechargeable.
Wireless unlock control supports power on and power off unlock mode.
Monitor can hang on the wall, cabinet, or be place on the desk, table, etc.
Piano bakes lacquer panel design on indoor unit.
Brightness and talk volume are adjustable.
High-sensitive touch keypads..
Wide applications such as villas, apartments, office, hotels, public buildings, etc.

Monitor
Screen: 7" TFT LCD
1250mAh lithium battery,Standby time 120h
Adapter input: AC100-240V, 50/60Hz
Material: Plastic
Dimension: 245*145*15mm

Camera
1/3" CMOS 700TVL
Adapter input: AC100-240V, 50/60Hz
1250mAh lithium battery,Standby time 2 months
Dimensions: 155*95*30mm