※ high-grade aluminum silver brushed shell, durable, nice;
※ equipment using embedded computer technology and DSP audio processing technology design;
※ high-speed industrial chip, start time is less than 1s;
※ a key to help, call the duty room or control center, simple and quick operation;
※ built-in high sensitivity pickup, sound collection area wide, high degree of voice reduction;
※ built-in 3W full-range monitor speakers, sound clear, loud;
※ support hands-free calls and receive broadcast function;
※ Support local electronic door lock, local alarm indicator (2 election 1);
※ support local short circuit access;
※ DC power supply interface, external 24V power adapter;
※ installation and installation of two kinds of installation and installation;
