Features

• 15-Hour Battery - Rechargeable lithium-ion battery for up to 15 hours of battery life between USB-C charges.
• Virtually Indestructible - With its IP67 rating, it holds up against dust, dirt, big splashes—and it even floats in water.
• Signature + 4 Pre-Set EQ Modes - Enjoy the Ultimate Ears Signature sound and several other EQ modes. Didn’t find your favorite? Customize it yourself.
• Bold Sound, Boldly Portable - BOOM 4 packs a sonic punch for its size. Featuring Ultimate Ears unique audio processing, it produces clear and balanced audio faithful to the music you love, and at every volume level.
• Spatial 360° Sound - With the iconic cylindrical design, we pioneered to deliver immersive, stereophonic audio that radiates evenly in all directions. BOOM 4 gives your music a deep, rich bass. Enjoy the punchy bass without exaggeration or distortion.
• Made With Recycled Plastic - Plastic parts in BOOM 4 include a minimum of 52% certified post-consumer recycled plastic* by weight. It’s also designed for recycling.