I am working on my second pair of electronic ear protectors. I purchased my first pair from Brownells. When they stopped working after at least 5 years I returned them to Brownells for a free replacement. They are a great company to do business with.
When I was a kid my parents would take me to the local range on Sundays. We had no hearing protectors in those days, which was the 1950's. When we would go home at night it was almost 8 PM (time for Ed Sullivan) before my hearing got back to normal. Thats why I wear two hearing aids today.