Ultimate Ears Boom 4 Bluetooth Speaker Color:Active Black Elemental Tumbler keeps your beverages

Elemental Tumbler keeps your beverages warm even on-the-go

No more towel bunching

because we don’t believe in warm beer…soda

Put a fork in single-use plastic waste

Phthlalate Free Fragrance

Ultimate Ears Boom 4 Bluetooth Speaker Color:Active Black Elemental Tumbler keeps your beveragesGrab 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.