Ultimate Ears BOOM 4 Portable Waterproof Speaker – 360° Sound, 15h Battery, 147 ft Range – Blue

Meet BOOM 4: The portable waterproof speaker built for adventure

Designed to ride along on hikes, beach days, or even a shower playlist, the Ultimate Ears BOOM 4 blends balanced 360-degree sound with a clean bass punch in a compact, rugged package. The blue finish signals its outdoor-ready vibe, while the internal engineering prioritizes clear audio no matter which direction you stand. This is more than a speaker; it’s a companion that travels with you, delivering consistent sound in a wide variety of settings.

All-around sound and sensory detail

• Portable 360° sound delivers evenly dispersed audio with crisp highs and grounded bass for intimate rooms or open air.
• Four EQ modes let you tailor the tone, or you can craft a personal setting for your mood or activity.
• Pairing with other Ultimate Ears speakers can expand the sound field for a fuller, surround-like experience.

Engineered for endurance

• IP67 waterproof rating and drop-proof design protect against splashes, rain, and accidental bumps; it also floats for easy retrieval.
• The rechargeable battery powers up to 15 hours of playback on a single charge, helping your day or night keep going.
• USB-C charging enables quick top-ups between adventures.

Smart listening and seamless control

• Magic Button offers one-touch access to playlists from supported streaming services for quick listening.
• One-touch playlist setup works with Spotify on Android and Apple Music on iOS, making it easy to jump into favorites.
• PartyUp lets you wire multiple Ultimate Ears speakers together for louder, wider sound stages.

Connectivity and sustainability

• Up to 147 feet (45 meters) of wireless range lets you wander away from the speaker without losing the rhythm.
• Made with a notable share of post-consumer recycled plastic to reduce environmental impact.

Whether you’re packing for a campsite, tossing it into a gym bag, or setting it on a shower shelf, the BOOM 4 is designed to keep the music flowing with practical, adventure-ready features. The tone stays balanced, the bass remains present, and the controls are straightforward—aimed at enhancing your listening moments without overpromising outcomes.