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1959: Auriculette. From a vest pocket to behind the ear.
Like its predecessors, the 1959 Siemens Auriculette 326 consisted of a microphone, amplifier, and earphone, with a battery as a power supply. In the Auriculette, however, the components were so small and lightweight that they fit together in a single housing worn comfortably behind the ear.Read more
1954: Phonophor Epsilon. Lighter than a tennis ball, as small as a matchbox
The Phonophor Epsilon weighed only about 50 grams (less than two ounces), including the batteries, and was the size of a matchbox. This was made possible by a discovery that had been made just a short time before, and one that has gone on to become a fixture of our everyday lives today: transistor technology.Read more
1951: Phonophor Alpha. The power of electrons – right in your vest pocket
It was not until World War II and the postwar period that subminiature tubes were developed, allowing for lightweight, compact hearing aids that encapsulated the benefits of the new technology in a form small enough to fit in a vest pocket.Read more
1928: Phonophor with microphone amplifier. Lighter and more compact.
After the huge success of the first Phonophor models, Siemens & Halske expanded hearing aid production activities at Berlin’s Wernerwerk plant. New materials and designs made the Phonophor lighter and more compact, while advances in technology improved performance and sound quality.Read more