Profile: Sigtronics Corporation produces communication products. Our product line includes headsets, intercoms, mobile radio adapters, portable radio adapters, accessories, cable, and hardware. We offer service for emergency apparatus and aviation communications. Our mobile radio adapter is an emergency adapter by simply plugging the hand mic into the adapter, plugging the adapter into the radio mic connector, connecting the other side of the adapter to the intercom, and connecting the speaker line from the radio to the intercom. Our accessories include power adapter, tone modules, digital voice recorder, emergency radio switcher, headset extension cable, and ring bypass cable. Our ring bypass cable provides connection from apparatus body to turntable.