Profile: Pilot Communications USA manufactures connectors and plugs for the communication requirements. We have a full line of mil-spec plugs and connectors in stock & can supply the full Nexus® range of plugs and connectors. The stereo version PA-400ST intercom is a portable design that has been used in general aviation industry. It includes a cell phone jack for safety and convenience. We offer several styles of ears seals from our standard foam filled seals to our proprietary twin layered silicone gel filled ear seals. Our twin layered seals provide the highest noise attenuation and are comfortable due to their pliable form fitting design. We also manufacture Confor® foam ear seals with a leatherette covers. These ear seals are heat sensitive and mold to the shape of the ears.