Ultimate Ears WONDERBOOM 2 Portable Bluetooth Waterproof Speaker - Crushed GrayUltimate Ears WONDERBOOM 2 Portable Bluetooth Waterproof Speaker. Crushed Ice Gray version. Features: Ultimate Ears WONDERBOOM 2 rocks a surprisingly bigger, bassy er 360 degree sound wherever you go. And with the new Outdoor Boost, you can crank louder, more powerful audio thats specially tuned for listening outside. So go ahead bring the ruckus along for the ride. This little guy knows how to bring it. Packing 13 hours of killer sound, it bangs