In 1878, Werner von Siemens developed the ‘Phonophor’ telephone receiver for the hearing-impaired. Ever since, the German-based company has been at the very forefront of hearing aid solutions internationally and were responsible for the world’s first pocket-sized hearing aid in 1949. They also revolutionized the hearing aid market by introducing the world’s first digital hearing aid with dual microphones in 1997 to improve hearing capabilities in background noise. They were also the first hearing aid manufacturer to develop trainable hearing aids that learn and apply user preferences, and first to incorporate wireless communication between hearing aids, known as ‘e2e’, to enable them to work as a pair rather than independently. Up until recently, Siemens were the only the major hearing aid manufacturer to offer a rechargeable range of hearing aids using their ‘eCharger’.