Said to be the latest in wearable hearing technology, the firm’s hearing aids can be discreetly controlled through both iPhone and Android devices.

Siemens Hearing Instruments CEO Scott Davis said: "These are not your average hearing aids but rather highly-intelligent wearable devices.

"They automatically detect everyday listening environments such as a noisy room, wind, or while driving a car, and instinctively know what to do."

A wearer can control the direction of the hearing aids’ microphones, when paired with its new easyTek and easyTek App, according to Siemens.

Helping wearers to select a wide range of focus or a very narrow beam, the span of the microphones’ focus can also be controlled through the app.

A smartphone is not required to make use of the new technology and hearing aids can continuously scan the acoustic environment and activate the most optimal settings for that particular listening situation.

Davis further added: "With these hearing aids, you can turn your iPhone or Android device into a hearing aid control center. We call it on-demand hearing."