Ultimate Ears MEGABOOM 3 Portable Bluetooth Speaker - Powerful Sound

Our review of the Ultimate Ears MEGABOOM 3 finds it best suited for people who want a truly portable party speaker that can handle rough outdoor use. The single biggest reason to buy is its combination of 360-degree, crystal-clear sound and deep, thundering bass in a package that is waterproof, dustproof and built for adventure. For speakers that travel to the pool, beach or a campsite, the MEGABOOM 3 delivers balanced sound and long playtime with an emphasis on durability.

Key Features

• 360-degree sound: Delivers bold, immersive audio so a group hears consistent volume and clarity from any angle without needing to point the speaker.
• Up to 20 hours battery: Rechargeable battery provides extended playback so playlists can run through a full day of outdoor activity.
• IP67 waterproof and dustproof: The speaker can be submerged and resists dust, so it survives pool parties, rain and sandy beaches.
• All-new Magic Button: One-touch play, pause and skip control lets users operate streaming music directly on the speaker without pulling out a phone.
• Durable performance fabric: Two-tone, extreme-performance textile is engineered to withstand abuse while keeping the speaker looking good.
• PartyUp connectivity: Ability to pair many Boom and Megaboom speakers creates a larger surround sound setup for bigger gatherings.

Who It's For

The MEGABOOM 3 is aimed at outdoor enthusiasts, small-group entertainers and anyone who wants a robust, portable speaker with strong bass and 360-degree coverage. It is especially useful for people who need a speaker that floats and can be used at the pool or on boats without worry.

Those who require perfectly consistent Bluetooth connections for professional use or who need louder maximum volume than some users expect may want to compare alternatives; a few customers report spotty Bluetooth behavior and mixed results with volume and battery life in highly variable real-world use.

Pros & Cons

Pros

• Very immersive 360-degree sound with noticeable bass for its size.
• Robust IP67 rating means it is waterproof, dustproof and floats for carefree outdoor use.
• Long advertised runtime with a 20-hour battery that suits day trips and parties.
• Convenient Magic Button control and wide compatibility with PartyUp for multi-speaker setups.

Cons

• Bluetooth connectivity can be spotty for some users, leading to occasional dropouts.
• Battery life reports are mixed in real-world use, with a few customers seeing significantly less than advertised in heavy-use scenarios.

Specifications

Brand	Ultimate Ears
Model	MEGABOOM 3
Battery life	Up to 20 hours (rechargeable)
Waterproof rating	IP67 (submersible up to 1m for 30 minutes)
Mounting type	Freestanding
Controls	Magic Button for play, pause and skip
Connectivity	Bluetooth with PartyUp multi-speaker support

Our Verdict

The Ultimate Ears MEGABOOM 3 is a strong choice for buyers who prioritize waterproof durability and full, room-filling sound quality in a portable package. It offers great value for outdoor use and social gatherings, while buyers who need flawless Bluetooth reliability or maximum loudness should audition it alongside other options before committing.

Frequently Asked Questions

Is the MEGABOOM 3 waterproof?
Yes. It has an IP67 rating and can be submerged in up to 1m of water for 30 minutes and is dustproof.

How long does the battery last?
Ultimate Ears states up to 20 hours per charge; real-world battery life varies with volume and usage patterns.

Can multiple speakers be paired?
Yes. Use the BOOM & MEGABOOM app and PartyUp to pair many Boom and Megaboom speakers for expanded sound.