Ultimate Ears MEGABOOM 3 Portable Bluetooth Speaker - Big Sound, 20H

In this review the Ultimate Ears MEGABOOM 3 is evaluated as a rugged, travel-ready portable speaker for listeners who want bold, room-filling sound and dependable battery life. The biggest reason to buy is its combination of immersive 360-degree audio and real-world durability: the speaker delivers deep, punchy bass and clear mids in a compact, waterproof package that is easy to take anywhere. The review looks at sound, battery, build, and day-to-day usability to help decide if it fits your routines and outings.

Key Features

• 360-degree sound: The speaker produces bold, immersive audio so music fills a small room or outdoor area without having to aim the unit.
• Up to 20 hours battery: A rechargeable battery provides long playback on a single charge so it lasts through most day trips and many evening gatherings.
• IP67 waterproof and dustproof: The MEGABOOM 3 can be submerged up to 1m for 30 minutes and resists dust, making it suitable for poolside, beach, or wet-weather use.
• Magic Button: On-unit playback control lets you play, pause and skip tracks without touching your phone, simplifying hands-free listening during activities.
• Durable performance fabric: The two-tone, extreme-performance fabric is designed for heavy use and resists abrasion while keeping the speaker looking presentable.
• PartyUp multi-speaker pairing: Use the BOOM & MEGABOOM app to pair many speakers for a larger, synchronized soundscape.

Who It's For

The MEGABOOM 3 is well suited for outdoor enthusiasts, frequent travelers, and anyone who wants a reliable, waterproof speaker that still delivers strong bass and clear sound. Its portability and IP67 rating make it a good match for pool parties, camping trips, and beach days where exposure to water and dust is a real concern.

People who primarily need ultra-compact pocketable speakers, or those who demand audiophile-level precision in a studio environment, should look elsewhere; this model emphasizes power, durability, and convenience over near-reference studio neutrality.

Pros & Cons

Pros

• Very strong, immersive 360-degree sound with thundering bass that suits outdoor use.
• Solid waterproofing and dust resistance with flotation makes it genuinely adventure ready.
• Long battery life on a single charge and optional wireless charging dock availability improves convenience.
• On-speaker Magic Button and app support allow quick control and multi-speaker pairing for larger setups.

Cons

• Some users report mixed battery longevity and occasional Bluetooth connectivity issues, so real-world results can vary.
• Not the smallest or lightest speaker if pocketable convenience is a priority.

Specifications

Product type	Portable wireless Bluetooth speaker
Sound	360-degree immersive audio with deep bass
Battery life	Up to 20 hours rechargeable
Ingress protection	IP67 waterproof and dustproof (submersible up to 1m for 30 minutes)
Controls	Magic Button for play, pause and skip
Fabric	Two-tone extreme-performance fabric
Multi-speaker	PartyUp support via BOOM & MEGABOOM app

Our Verdict

The MEGABOOM 3 is a strong choice for buyers who prioritize powerful, portable sound and rugged durability at a reasonable value. Its waterproof design, immersive 360 audio and long battery life make it a versatile everyday speaker for outdoor and travel use, though a minority may experience inconsistent battery or connectivity performance.

Frequently Asked Questions

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

How long does the battery last?
Battery life is rated up to 20 hours on a single charge, though actual runtime depends on volume levels and usage.

Can I pair multiple speakers?
Yes. Use the BOOM & MEGABOOM app to PARTYUP and connect many BOOM and MEGABOOM speakers for synchronized playback.