I tried these fuses and they do make a difference, although I am not sure if it is an improvement.
I actually gave up using them after a while...not because they don't work....but because I found they kept falling out when I moved around. (BTW, the directional fuses sound best with the arrow pointing towards the ear drum and lightly touching it. I'd also recommend some Q tips before installation; the first time I tried this, one fuse got stuck for a week and my wife couldn't understand why I kept ignoring her at the dinner table!)
I actually gave up using them after a while...not because they don't work....but because I found they kept falling out when I moved around. (BTW, the directional fuses sound best with the arrow pointing towards the ear drum and lightly touching it. I'd also recommend some Q tips before installation; the first time I tried this, one fuse got stuck for a week and my wife couldn't understand why I kept ignoring her at the dinner table!)