Ultimate Ears Wonderboom 4 Portable Bluetooth Speaker in Cobalt Blue

Ultraportable Bluetooth speaker with a surprisingly bigger 360 sound. It's crisp, bassy, and ready to go with 14 hours of full stereo boom. The IP67 rating means it's waterproof, dustproof, and floats. Take it to the pool, the beach, or even the shower. It's amazing sound, no matter where you take it. Now made with a minimum of certified 31% post-consumer plastic that gives new life to PET bottles, so you can party for the planet.

• ULTIMATE EARS WONDERBOOM 4, User Documentation