Using the new Walker Razor X (non blue tooth version) - I like them. Not love them, but I'm sure in time I will love them. All in getting use to a different way of doing things.
I'm comparing these to the current electronic ear muffs I have -
https://www.amazon.com/Howard-Leight-Amplification-Electronic-R-01902/dp/B007BGSI5UThe cheaper earmuffs I don't like and only have a 21 db noise reduction rating - no where near enough for me!
Things I noticed:
- Comes with 3 pair foam ear inserts - pair of large, med and small. Does say where you can call to get replacements, but no pricing on their website. So no "spares" till you get them from somewhere.
- With volume turned off - both items reduce noise the same.
- The Walker can amplify sound way more than comfortable - good for those already deaf. (For those who are slow, that means don't turn them up too far)

- After getting the Walker to fit properly, wearing them for 5 hours at a match was not a problem.
- The Walker has a way to select "indoor" and "outdoor" mode. The indoor has a greater trailing delay in blocking loud noise. I preferred the indoor at the match.
- Unlike the cheap electronic ear muffs I noticed NO clicking when it reduced sound and then a click when it stopped reducing the sound level.
- Would I buy them again - YES!!
Got other questions - ask away!