Great Idea for a product. Poor communication team, even worse shipping, worst understanding of sensible business. Want to hear about the actual product? it's personal preference. If you could try before you buy it would be more realistic, though from other reviews on their website (which are staff approved) you can get an idea. Find a specialist for your speciality sensory problems. It's the truth. Practically, It's a given that after 2 months of waiting, instead of the IMPLIED 14 days (which when mentioned to their support was met with "We say nowhere we 'promise' 14 days...") on these Calmer earplugs, after my auditory overstimulation was getting a little difficult, I became weary. They come from Germany and use COVID as a scapegoat for their shipping, they know, they say it anyway. Support= 1/10 Advertising= 10/10 Marketing= 10/10 Product= literally a silicone earplug with a hole in it. Don't overthink it. Do it anyway if you want it like me, hopefully you dont get annoyed like me.