NEWARK, Calif.--(BUSINESS WIRE)--Today Ultimate Ears announced its sixth artist-designed UE BOOM mobile speaker, designed by contemporary graffiti artist Greg ‘Craola’ Simkins. The Safe Haven Edition UE BOOM celebrates the depth and detail in the world of art by combining the powerful sound from the multi-award-winning UE BOOM with Craola’s vivid – and imaginative – designs. Craola draws inspiration from his favorite childhood books and cartoons, and weaves together pop culture, nature and carn