Sell ▲◕▨Dual-Way Talk Through Store Office Window Glass Counter Intercom Speaker System best price

Features: --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