Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range - Black
Overview
The Ultimate Ears BOOM 4 is a rugged, super-portable Bluetooth speaker designed for people who take their music outside — swimmers, campers, beach-goers and backyard hosts. It delivers balanced 360-degree sound with punchy bass in a compact, adventure-ready package that floats and resists water and dust. With a 15-hour rechargeable battery, a 147 ft (45 m) wireless range and one-touch playback via the Magic Button, BOOM 4 focuses on easy, reliable performance rather than audiophile precision. It also supports multi-speaker pairing and app-based EQ profiles so you can expand volume and tune the sound for parties or quiet moments alike.
Key Features
- 360-degree immersive sound: designed to deliver even coverage around the speaker for consistent listening in outdoor and indoor settings.
- Waterproof and dustproof construction (designed to float): built for poolside and beach use so you don’t need to worry about splashes or sand.
- 15-hour rechargeable battery and approximately 147 ft (45 m) Bluetooth range for extended wireless listening and freedom of movement.
- Magic Button and UE app: one-touch playback controls on the speaker plus four EQ modes (and custom presets) accessible via the app.
- Multi-speaker pairing: supports pairing with other Ultimate Ears speakers (MEGABOOM, EVERBOOM, EPICBOOM, HYPERBOOM and compatible BOOM models) to increase volume and create party or stereo setups.
Pros & Cons
Pros
- True outdoor durability: floats and resists water and dust for pool/lake use and rough conditions.
- Balanced 360-degree sound that fills small-to-medium outdoor spaces without complex placement.
- Long wireless freedom: up to 15 hours of battery life and about 147 ft (45 m) Bluetooth range.
- One-touch Magic Button and app-controlled EQ modes let you play and customize without fuss.
- Expandable: pair multiple Ultimate Ears speakers for bigger parties or a surround-style setup.
Cons
- Bass and headroom are limited compared with larger models like MEGABOOM or HYPERBOOM.
- Not the best choice for audiophiles seeking studio-level detail or wide dynamic range.
- Feature set prioritized for outdoors — it lacks an aux-in and may not replace a home stereo.
- Battery life (15 hours) is solid but shorter than some larger portable speakers on the market.
Recommendations
- Pool and beach users who want a speaker that floats, resists water and handles sand and splashes without worry.
- Campers and hikers who need a compact, rugged speaker with good battery life and long Bluetooth range.
- Backyard gatherings and small outdoor parties where you want wide coverage and the option to link more speakers.
- Travelers and day trippers who want simple one-button playback, app controls, and a durable build that won’t be ruined by the elements.
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