Product: Case of 3,Retekess TW102 Bank Window Intercom,Window Microphone and Speaker,Dual-Way Interphone for Business,Office
Brand: Retekess
Color: Silver
Window speaker system is deal for Bank; Stock-exchange; Post office; Railway station; Cashier desk; Ticket office and Hospital; bus station; where guard glass again theft is installed

Aluminum alloy shell material
The main unit has aluminum alloy shell; and the extension has built-in speaker;This system has simple connection for DIY operation

Simple operation and install
Adjustable volume with separate switch:two knobs to adjust the inside and outside volume; When the indicating lamp for audio turns green;the inter communication could begin; Spare record jack for the bank:You could record the voice through record jack; The round speaker can be mounted outside so any holes would just be to run the wire;so not need to make a hole in the glass to install the intercom

Feature:
Dual way intercommunication
Slim fit design of speaker
Dual way audio record

Specification
Material: aluminum alloy shell
Connection cable length:1.8m
Working voltage: DC12V with 500mA
Adapter: AC 110V 50/60Hz
Main sound (sub sound): 3W+3W
Microphone sensitivity: -48db 20Hz-16KHz

Package Includes
3 x Dual-way counter inter phone
 3 x External speaker
3 x Power adapter
3 x English manual
Durable material that Main unit is made of aluminum alloy shell and metal for outside unit
Clear and loud voice by the 4 core high strength aluminum foil shielded wire; which noise free function
Microcomputer processing circuit solves the problem of echo and squeal; Automatically 2 way intercommunication without pressing any button
Specifically two way voice signals output design for your business system recording need ;recording jack can be output both inside and outside
This system has top quality speaker and high sensitive microphone; Especially the metal tube microphone is deal for the counter and the dual way intercommunication

Search query: window intercom system
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