Dual-Way Audio Window Speaker Intercom System

This window speaker intercom system is designed for short distance communication. Suitable for the Bank, Securities Company, Hospital, Station, .etc. where the Burglar-proof glazing is installed. It is simple, economical and convenient.
Adjustable volume with separate switch. Anti-interference and noise-free function.
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.
The voice from the system is clear and natural. There is a switch only for the volume control. For this system. We adopted the advanced microcomputer from USA Track-interlock technique ensures the stable performance without noise and side-tone.
The main unit has aluminum alloy shell, and the extension has built-in speaker. This system has simple connection for DIY operation.