Specification :

Function
1.Wireless dual communication, monitoring, release door
2.Inner calling
3.Capturing image
4.1 GB memory card ( Image storage )
5.Adjustable brightness, color, contrast and ring volume
6.Capable to support 2 outdoor station and 4 indoor phone
7.Adjustable talking volume
8.Changeable chord melody( 12 ring tones)

Features and specification:
2.4G ISM digital public frequency
2.4 inch TFT LCD screen
Effective range in 300 meters in free field
On screen display manual
Back up battery for indoor unit
Temperature: -10^ 70 Degrees
Relative humidity: 45% ~ 95%
Atmospheric pressure: 86Kpa~ 108Kpa
Indoor phone power: DC4.5V/ 1A outdoor station: DC5V/ 1A
Standby status: 72 hours
Transmission power: 16~ 20dBm
Outdoor station dimension: 127* 95* 37mm
Indoor phone dimension: 102.5* 66.5* 18mm
Net weight: 300g
Installation: surface mounted
Warranty: 1 year