I have been wearing hearing aids for over 15 years. During that time I have purchased 3 different pairs at $5,000+ each. When the last pair needed some minor repairs, I decided to try your product. I must say I am surprised and delighted that the Otophonics I purchased via Amazon, at a 10th of the price I would have expected to pay, works very very well. I am pleased with my purchase. Great value.