The ASK-4® #102-RM is a single zone audio monitoring kit compatible with most recorders. The kit is designed for audio monitoring and for interfacing with a DVR. It is ideal for Live Monitoring Systems. The rack mounted APR-1 desktop base unit has a speaker for monitoring live audio and playback. It contains a mute switch to mute both live and playback audio. The Verifact® D microphone is is designed for wall mount.