The guys at Lonestar Airsoft has a review online of the Cobalt throat mic set. Check out their site to see the full review:
As we all know, Airsoft is about teamwork, and as a part of that, communication is an important aspect, whether it be by hand signals, radio, or other means. Headsets are a critical part of radio comms, and one of the most popular options for players are throat mics, partly due to SF and SWAT team usage in the movies.
This review covers the Cobalt Throat Mic Kit, which is priced as a mid-range communications option. It is meant to be more rugged and functional than the cheap throat mics marketed for Airsoft, but not as pricey as a device from a company like TCI. Cobalt offers their throat mic in two flavors: The generic mic kit and the custom kit. The generic kit includes standard length wires with a variety of accessories AustinWolv, (Lonestar Airsoft)
