1)Front cover is metal jacket,elegance,aesthetic
2)Hands free two-way talkback full automaticity
3)Micro computer control circuit with squelch function; can thoroughly solve echo and squeal problems.
4)Adopt high-powered mic,elegant appearance,voice is lifelike, clear;the volume of master station and substation can be adjusted separately by oneself;
5)Easy installation ,there is only one wire for connecting master station and substation,the volume of internal and external can be adjusted by separately
6)Inside-mute (turn on this key, inside worker can’t hear outside voice )
Outside-mute (turn on this key, Outside guest can’t hear inside voice )
8)Widely use at any window internal/external intercom,the place which difficult to talk.