20 dB filters out damaging noise.
Good for continuous type noise you would be exposed to in:
motorcycling, music concerts, sporting events, flying, studying-concentration in noise. Comfortable to sleep in.
 
Acoustic filter reduces noise but allows speech/music/surrounding sounds to be heard.
- Low profile compared to others on the market. Does not stick out of the ear. Not that visible if you want to wear it at a music club.
-No helmet pressure issues as it sits flush with the entrance to the ear.
-Opening in the plug lets air pass and reduces the "stuffy" feeling compared to foam plugs.
-Reduces pressure change ear discomfort associated with airplane takeoffs and landings. More comfortable than EarPlanes brand as it doesn't protrude from the ear, allowing you to lay your head on a pillow.