This EM-3242V D-Shape earpiece can be used with the push-to-talk (PTT) button on the inline microphone, or as a voice activated unit (VOX). When activated on a Voice Activated Transmission (VOX) mode, the user can operate in total hands-free mode without having to use the PTT button. To disable the VOX feature, user simply set selector back to PTT. The EM-3242V VOX earpiece is exellent and works well in a variety of conditions. The microphone/ptt housing clips securely to your vest and lies flat so it is not easily displaced and can be pressed from the front without having to grab hold of the unit.

EM-4238T is a Security covert surveillance kit earpiece for two way radios. The clear quick disconnect acoustic tube allows for easier exchange of ear pieces and provides for discreet operation.Provides transmit and receive capabilities, and includes a clear acoustic tube with a rubber ear tip for extended wear and comfort. It's the ULTIMATE covert solution in high noise environments.

EM-4213 1-wire Surveillance Earpiece with inline PTT microphone for Two Way Radios This acoustic tube earpieces are in use by all professional sectors of radio communications. It is ideal for surveillance purposes and security at airports; casinos; crowd control at conventions and concerts; and other working environment requiring discreet communications. This model feature a Quick Disconnect design to allow the acoustic tubes to be changed easily.This Surveillance Headset delivers crisp, clear sound even in noisy places and the PTT microphone can easily attach to your clothing with an accompanying clip.