Good marketing story for the general public, but yeah some things don't add up to me. Their page tries to explain IEMs with each frequency being it's own individual particle, and traditional IEMs ( speakers/headphones/normal hearing) scattering half of them while their design preserves it all.

I don't think that's quite how it works.

Then again, on their page they said they are treating sound waves the same as light waves, which is telling enough.

Your ear with an IEM is a pressure chamber type of environment, and sound waves with differing frequencies from a driver are generated more as a whole waveform. Their explanation seems flawed more you look at it

Gotta love their animation of how a traditional IEM has most of the soundwaves bouncing back and forth inside the chamber and only a few reach the eardrum https://cdn.shopify.com/s/files/1/1721/0649/files/Traditional-Earphones.gif?v=1662979573