They work
All 5 products were very good with noise reduction. All 5 were easy to insert however i experienced some pressure pain once inserted and while taking them out but i have tennitis. I like the clear gel like silicone ones the best, they were more comfortable for me. I took a bath to test the waterproofing and no water got in my ears which is great because im prone to ear infections from getting water in my ears. I gave a 3 star based on that pressure pain i experienced.
Rating: 3 stars