Founded in 1940, Beaumont-based Beltone is a global leader in hearing health care. One of the largest manufacturers of hearing instruments, Beltone products are sold in the United States, Canada and over 40 countries worldwide. In addition to providing outstanding service and support for our U.S. hearing care network, operating in over 1,300 offices in North America, Beltone remains the most trusted brand for quality products and care among its patients and adults aged 50 and older. Beltone Products are developed using only the latest hearing technology and are designed to fit just about any lifestyle and hearing loss. Shell Styles The outer shell is the first of the two main parts of a hearing instrument and it makes up the overall look. Inner Circuitry The inner circuitry is the second of the two main parts of a hearing aid and it determines the type of technology.