Ultimate Ears BOOM 3 is a super-portable wireless speaker built for adventure. It rocks immersive 360° sound with deep bass, all carefully balanced so you can hear every note. But BOOM 3 also hangs tough. It’s seriously waterproof, dustproof, and drop proof which means you can bring vibes anywhere. Ultimate Ears BOOM 3 is a super-portable wireless speaker built for adventure. From the desert festival to the pool party and everywhere in between. Plus BOOM 3 features the all-new Magic Button so you can play, pause and skip songs directly on the Bluetooth speaker. And it is wrapped in a stunning, high-performance fabrics. The ultimate go-anywhere speaker just got more ultimate. Maximum Sound Level: 90dBA.Frequency Range: 90Hz - 20kHz. Ultimate Ears BOOM 3 is a super-portable wireless speaker built for adventure. Extreme performance fabric: Boom 3 is covered in shimmering two-tone fabric that’s tough, beautiful and engineered for extreme applications like motorcycle jackets and fire Equipment which means this performance textile is built for extremes.