Model AOP-SP-CF is a ceiling mount speakerphones designed to interface with various modes of audio/video transmission systems. They provide bi-directional audio with the receiving source (DVR, PC soundcard, IP Network cameras with audio, andvideo servers with audio). It contains contain a built-in electret condenser microphone and a 4" speaker. Also control potentiometers for adjusting the sensitivity of both transmitted and received audio.
Omni-directional microphone and 4" speaker
Controls for adjusting volume of both listen and talkback