Two-Way Window Intercom System for Counter (DL-988)

Streamline design: The main unit has aluminum alloy shell, and the extension has built-in speaker.This system has simple connection for DIY operation Highg quality: This system has top-quality speaker and high-sensitive microphone. Especiall 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 ony for the volume control Advance technique: For this system,we adopter the advanced microcomputer from U.S 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 intercommnication could begin Si