【Dual-way intercommunication and audio record】Hands free two-way talkback full automaticity.Have output for recording, also can connect record equipment external.
【 Top-quality speaker and High-sensitive microphone 】This system,we adopter the advanced microcomputer from U.S.A. The voice from this system is clear,and natural,and Anti-interruption and noise
【Streamline design 】The main unit has aluminum alloy shell, and the extension has built-in speaker.This system has simple connection for DIY operation.Full metal jacket, elegance, aesthetic
【Easy to used】This system has two knobs to adjust the inside and outside volume. When the indicating lamp for audio turns green,the intercommunication could begin. Easy for dual-way intercommunication without pressing button.The indicating lamp shows the track's working status.
【Widely Used】Widely use at any window internal/external intercom, the place which difficult to talk. It a best choice for the Bank, Securities Company , Hospital, Ticket Station, Hospital where the security glazing is installed.