Speech discrimination scores of 20 hearing impaired children with a mean age of 14 years were examined when using their own conventional hearing aids on the microphone setting and the radio neck loop with and without the use of the environment microphone of the radio receiver. Testing of speech discrimination was administered in noise where S/N of +20dB. +10dB and OdB were used. Elect... https://herbsdailyes.shop/product-category/horsetail/