Take your favorite music on the go with 40 off the Ultimate Ears Wonderboom 4 portable speaker

Mashable's Best: E-readers, robovacs, laptops, earbuds, smart home and more In My Bag Look Up Say More Trending Now Mashable Selects Creator Playbook Back to School Good Connection: Uplifting stories for a digital age Switch Off Mashable Voices Safety Net All Series A powerful speaker that projects, so everyone can get in on the music. Brittany is fueled by horror, rainbow-sugar-pixel-rushes, and video games. Until her dying breath she'll be wielding a BFG made entirely of killer drive and ambition. Check out her work at PfhorTheWin.com. Like a fabulous shooter once said, get psyched!