including headsets, belt and flex-pak body radios, and headset radios; base stations, including compact, multi-man TRBS, base master VIII, mini base, and Valcom 900 base stations; accessories, including headphones, rechargeable power systems, and hard hat mountings; and con-bases and communication-kit bases, loudmouth products, and loudmouth speaker microphones. In addition, it provides wLINK, a wireless interface for hard wired intercoms and mobile radios; and customized wireless radio systems. The company’s products have applications for various uses, such as two workers putting precision and productivity into crane lifts; large teams operating loud and heavy machinery with high background noise; and HAZMAT teams and nuclear technicians working inside protective clothing. It sells its products through sales representatives in the United States. Earmark, Inc. was founded in 1973 and is based in Hamden, Connecticut.