Ultimate Ears Boom 2 Wireless Speaker (Tropical)Boom 2 is a cylindrical speaker that doesn't occupy as much space as a roll of paper towels. Rather than go with a standard black or white color, UE designs the Boom 2 with vibrant colors that seem to pop and stand out. Interestingly enough, the Boom 2 produces sound that seems to come from all sides of the speaker. Place it front and center on the patio, crank the music, and your guests will be dancing in no time. Boom 2, looks and feels like a party