Ultimate Ears Boom 4 Bluetooth Speaker Color:Active Black Quantum HDR delivers expanded range

Quantum HDR delivers expanded range of color and contrast

No seriously

increases circulation and improves mobility

Press-on lid prevents splashes and keeps drinks warm longer

S’ip by S’well was launched in 2016 as a way to extend S’well’s mission to create fashionable products that give back—customers can be proud that their purchase supports our mission to rid the world of single-use plastic water bottles and aid communities in need

Ultimate Ears Boom 4 Bluetooth Speaker Color:Active Black Quantum HDR delivers expanded rangeGrab 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.