> With Rectangular embedded design, simple and smooth appearance, sophisticated finish, and durable quality. > With embedded industrial-grade dual-core processing chip (ARM + DSP),to ensure start-up time less than 1S. > One key ask for help calling to the duty room to achieve quick connection, and easy operation. > Built-in high sensitivity microphone, with wide area for sound collection, and high sound reproduction. > Built-in 3W full-range monitor speaker, with loud and clear voice. > Support hands-free calling and broadcast receiving. > Support local electronic door lock and local alarm indicator ( select 1 from 2 options). > Support local access to short-circuit signal. > With DC power supply interface, to connect external 24V adapter. > Two installation methods: embedded and surface mounted installation. > Protection class: IP55.
