Features
Radio and unlock function
Xylophone sound doorphone with 2 wires
Designed for either desk use or wall mounting
Electric doorkey release button
Aluminum alloy has the anti-oxidation and outdoor wear-resisting surface treatment, durable and practical
Have good side tone circuit, and clear intercom sound 
Working range is up to 200 meters
Easy to install, the users can install by themselves
General Specs
Power Adapter Input VoltageAC220V 50Hz
Power Adapter Output VoltageAC12V 1200mA
Frequency Response300-3400HZ±3dB
Working Voltage DC12V±10%
Power ConsumptionStatic: !#!lt!*!0.2W
PhoneState: !#!lt!*!2W
MaterialABS + aluminium alloy
Outdoor Unit Size200 x 118 x 53 mm
Indoor Unit Size227 x 91 x 70 mm
Outdoor Embedded Unit Size170 x 103 x 46 mm
Package Details Weight: g
Size: cm