Video Surveillance Equipment Selection and Application Guide

Auxiliary microphones and jacks for special applications: Many camcorders will accommodate the use of auxiliary microphones if the built-in microphones are not adequate for special applications. A desirable characteristic of some camcorders is the existence of a separate jack for the auxiliary microphone. With the jack, it is not necessary to remove the basic microphone from the camcorder. This keeps that microphone stored on the camcorder and eliminates the chance of it being misplaced. Wireless microphone sets, like the Vivitar WMK-2 Wireless Mike Outfit, transmit over radio frequencies for hundreds of feet and are capable of transferring clear audio through typical doors and walls.