BY CAROLINE COPLEY
ZURICH, Sept 3
(Reuters) - A wireless microphone in the shape of a pen, made by Switzerland's Sonova, can help people with understand speech better than those with normal hearing at certain noise levels, a study has shown.
As the population ages, the hearing aid industry has become fiercely competitive as manufacturers rush to launch devices packed with newer technologies that will increase the appeal of wearing one.
Sonova is banking on new products to maintain its lead as the world's biggest hearing aid maker. Around 70 percent of its hearing aid revenue comes from products that have been on the market for less than two years.
The company's microphone, called "Roger" after the term used in radio communications to say a message has been received, wirelessly transmits a speaker's voice over a 2.4 gigahertz (GHz) frequency to a tiny receiver that clips onto the aid.