Dual-way intercommunication Dual-way audio record Anti-interruption and noise Slim fit design of speaker Input voltage: AC 110-240V Streamline design: The main unit has aluminum alloy shell, and the extension has built-in speaker.This system has simple connection for DIY operation. High quality: This system has top-quality speaker and high-sensitive microphone. Especial the metal tube microphone is deal for the counter and the dual-way inter-communication. Good performance: The voice from this system is clear,and natural. There is a switch only for the volume control. Advance technique: For this system,we adopter the advanced microcomputer from U.S.A. Definite instruction: The indicating lamp shows the track's working status. Simple operation I: Easy for dual-way intercommunication without pressing button. Simple operation II: This system haw two knobs to adjust the inside and outside volume. When the indicating lamp for audio turns green,the intercommunication could begin. Simple operation III: You could record the voice through record jack. Best Choice: It suitable for the Bank, Securities Company , Hospital, Station where the security glazing is installed. Specification: Working voltage:DC9V/0.5A Input voltage:AC 110-240V Main sound (sub sound):2W, 100Hz-15KHz Inside microphone:-48db 20Hz-20KHz
Outside microphone:-48db 20Hz-16KHz
Cable Length:1.6m/5.25ft
Main box size:158x87x46(335)mm / 6.2"x3.4"x1.8"(13.2")
Sub-box size:91x77x23mm / 3.6"x3"x0.9"
Package included:
1 x Dual-way counter interphone
1 x External speaker
1 x Charger
1 x English User Manual