Ultimate Ears Boom 4 Bluetooth Speaker Color:Active Black because we don’t believe in

because we don’t believe in warm beer…soda

Breathable Back Panel and Hydration Hanger

TREE-FRIENDLY SUSPENSION

Put a fork in single-use plastic waste

Ultimate Ears Boom 4 Bluetooth Speaker Color:Active Black because we don’t believe inGrab the super portable wireless Bluetooth speaker that's built for adventure. Seriously waterproof with balanced 360 degree sound, deep bass, and one touch music controls, the Ultimate Ears BOOM 4 is the ultimate go anywhere speaker. Experience four different EQ modes or customize yourself. The BOOM 4 is an extremely wireless speaker with 45 meters (147 feet) of range, so you can walk away and keep the tunes comin'. Ultimate sound. Made to wander.