Very Good Noise Reduction
I have tinnitis as well as hearing loss from working as a phone operator so I am hoping to stop anymore hearing loss.  I've used these earplugs for about 2 weeks.  They block out a lot of the backround noise.  They also reduce the loudness of sound.  Although the sound is less, I am still able to hear and carry on a conversation while wearing these ear plugs.  They do NOT block out all sound, but they are not supposed to. They are for noise reduction not noise canceling ear plugs.  They are tricky to place but once you find the right placement for you it is easy to replace them every time.  They do not fill your ear up but with three flanges, they do reduce quite a bit of the sound.  I have not used these in a concert style environment so I do not know how they will work in one.  I do recommend these if you need noise reduction.
Rating: 4 stars