Video Door Phone, Driven Type : Battery

We are offering video door phone 7" screen
resolution 800 x 480
night vision light
brightness and color control
monitoring
2 devices can be connected
built-in speaker
easy installation
touch controls
indoor unit
screen size : 7”
resolution : 800 × 480
camera cmos 600tvl
effective area : 154.08(h)×86.58 (w) mm
outline size : 135 x 219 x 1 7mm (wxhxd)
adapter input voltage : ac 100-240v 50hz 60hz
adapter output voltage & current : dc 18v 2a
monitoring time : 15s±10%
talking time : 50s±10%
working distance : 50m
operating temperature -25-60?
relative humidity ≤85%
outdoor unit :
working distance of infrared light : .