an Entity references as follows:
Heil Sound Communications, Inc is an American manufacturer of professional audio equipment based in Fairview Heights, Illinois. The company was founded by Bob Heil in 1966, and is well known for inventions in live sound, the Heil Talk Box and a variety of high-quality microphones and headsets for use in commercial and amateur radio. Heil Sound is also the only manufacturer to be invited to exhibit at the Rock and Roll Hall of Fame.