RELM Wireless spreads communications across the land. The company makes portable land mobile radio (LMR) products used for mobile handheld and vehicle communications. In addition to radios, its products include base stations, repeaters, and related subsystems. The US government and public safety agencies account for the vast majority of RELM's sales, but the company also markets to hotels, construction firms, schools, and transportation service providers. RELM Wireless sells its radio communications systems under the BK Radio, RELM, and RELM/BK brands.