Absolutely love these cardboard very easy to assemble shoe boxes! Unfortunately they dont block much sound. Tried two other brands, neither of which could compare in any way to Bose. This still has the same problem as the WMS 40 mini in which the casing is sensitive to any tapping. Es lo que esperaba la verdad, no es algo extraordinario pero cumple con su función. My daughter loves it & says much easier not to lose her air pods as well! I attached it to a 2x6 beam with four screws. Comfy but not the most classy looking on my feet. However, after a bit more than a year they started breaking down. The handles are on multiple sides and sturdy, again an area where other fabric boxes fail (and weve tried lots).