Shop BOOM 4 Speaker. Features balanced 360° sound, deep bass, one-touch music control, water, dust & drop proof, and stunning high-performance fabric. Logitech BOOM 4 Bluetooth Speaker Ultimate Ears in Active Black. Get sound that's big, bold, and balanced, all in one compact, portable Bluetooth speaker with UE's BOOM 4. Equipped with one-touch music control, a drop-proof, waterproof, dust-proof IP67 rating, and stunning high performance fabric, it’s the ultimate go-anywhere speaker that’s more bold and bassy than ever. 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. With the iconic cylindrical design, it delivers immersive, stereophonic audio that radiates evenly in all directions. BOOM 4 gives your music a deep, rich bass without exaggeration or distortion. Enjoy the Ultimate Ears Signature sound and several EQ modes like Bass Boost, Cramped Space, Deep Relaxation, and Podcast/Vocal from UE | BOOM App. Customize your sound with the app. BOOM 4 was born to hit the road. From rooftop-raging to mountaintop-shredding, BOOM 4's got your back. It's IP67 rated, waterproof, floatable and drop-proof. Take it anywhere. It's more powerful than you expect. BOOM 4 gives you 15 hours of sonic power on a single charge, keeping the party going. Use PartyUp on the UE | BOOM App to pair 1, 2, 3... and over 150 speakers to create the ultimate sound experience. Combine multiple BOOM 4, MEGABOOM 4, EVERBOOM, EPICBOOM and HYPERBOOM speakers or even pair them with previous generation BOOM speakers. Build a wall of sound? No problem. One tap to dive in. Play, pause, and skip tracks directly from your BOOM 4. Set up one-touch playlists on your favorite streaming platforms like Spotify®, Amazon Music on Android, and Apple Music for iOS by UE | BOOM App. Plastic parts in BOOM 4 include a minimum of 52% certified post-consumer recycled plastic by weight. It's also designed for recycling.