UE Boom
Used by 2 peopleen.wikipedia.org ↗

“(I'm suddenly realizing I have too many headphones.) There are also a half-dozen UE Boom speakers of various sizes and colors floating around my apartment, because they are the best and apparently because I love spending money on more ways to play music?”
David Pierce Interview, Editor-at-Large (Protocol) · via Uses This 
“I've got a pretty beefy BoomCase, which is fun, plus a few more typical ones like the Ultimate Ears Boom and a few cheaper, smaller ones.”
Jesse Kriss Interview, Software designer and developer (Netflix) · via Uses This