Sonotone Corporation was a hearing aid manufacturer that was started by Hugo Leiber[ secondary source needed], inventor of the bone conduction receiver, [1] in New York City in 1929.
The company was a leader in the hearing aid industry until multiple buyouts ending in 1970 led to the abandonment of the manufacturing plant. [2] It was temporarily revived in 1987 but had closed again by 2005.
Notable models of Sonotone hearing aids include the Sonotone 1010 in 1952 with a transistor and two vacuum tubes. [3] By 1960, in addition to hearing aids, Sonotone manufactured nickel cadmium batteries, loudspeakers, and hand held microphones.