Keyboard really good but after using just 15 days few keys fallout while normal cleaning process and space key fallout while typing. It was easy to assemble, looked great, and functioned as expected. We grew up hearing about Dr Dre and his line of headphones, so we thought these were going to be great. However, there is a reason my MH40s have been my go-to (wired) cans for the last year or so: and that is some sort of subjective ? and therefore almost indefinable ? character. Got a pair for Christmas and my dog snagged one with her toenail and the whole thing unraveled. I usually plug in my devices at night when I get back home and in the morning, everything is all powered up. Great quality shoes! Not sure why Topeak would make such a fragile strap on the front of the baby seat, everything else about the baby seat was good except for that. Didnt need anything extra. I do not have an extensive list, but it is worth looking into before you purchase.