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Surprisingly Bigger 360° sound

14 Hours of Boom

WONDERBOOM 4

Name: WONDERBOOM 4
Brand: Ultimate Ears
Availability: InStock
Rating: 4.4286 (21 reviews)

Portable speaker with outdoor boost.

£89.99

Shipping starts 6 October 2026

Special offers (1)

Spend £169.99 or more and receive a free backpack (valued at £39.99)—made for commutes, coffee runs, and days on the move.

SURPRISINGLY BIGGER 360 SOUND

Get that big, bassy stereo sound—all from one little speaker. Tap the Outdoor Boost for audio that’s specially tuned for the great outdoors.

NEW PODCAST MODE

Check out the new EQ mode specially designed for crisp, clear vocals, so podcasts sound great.

NEW PODCAST MODE

Check out the new EQ mode specially designed for crisp, clear vocals, so podcasts sound great.

HOURS OF WONDER

WONDERBOOM 4 bangs longer with 14 hours of playtime. So you can soak up every moment and keep the party going

HOURS OF WONDER

WONDERBOOM 4 bangs longer with 14 hours of playtime. So you can soak up every moment and keep the party going

BEATS DUST, SPLASHES, AND FLOATS

The awe-inspiring IP67 rating gives WONDERBOOM 4 the durability to withstand dust, dirt, and water. It’ll even float in water. Take it to the pool, beach, trail, or shower.

BEATS DUST, SPLASHES, AND FLOATS

The awe-inspiring IP67 rating gives WONDERBOOM 4 the durability to withstand dust, dirt, and water. It’ll even float in water. Take it to the pool, beach, trail, or shower.

DOUBLE UP FOR SERIOUS STEREO

All you gotta do is pair up two. Press once to double up. Press again for a full two-channel stereo assault—that’s left and right channels blasting from each respective speaker. (Doesn’t connect with WONDERBOOM 1,2, BOOM, MEGABOOM, or HYPERBOOM)

DOUBLE UP FOR SERIOUS STEREO

A REAL ROAD WARRIOR

It’s built to take 5-foot drops*. And with 40 meters of wireless range, you’ve got freedom to explore—even when the road gets tough. (*Drop-tested from 5 ft / 1.5 m.)

A REAL ROAD WARRIOR

It’s built to take 5-foot drops*. And with 40 meters of wireless range, you’ve got freedom to explore—even when the road gets tough. (*Drop-tested from 5 ft / 1.5 m.)

WONDERBOOM 4

Color Hyper Pink

SURPRISINGLY BIGGER 360 SOUND

NEW PODCAST MODE

NEW PODCAST MODE

HOURS OF WONDER

HOURS OF WONDER

BEATS DUST, SPLASHES, AND FLOATS

BEATS DUST, SPLASHES, AND FLOATS

DOUBLE UP FOR SERIOUS STEREO

DOUBLE UP FOR SERIOUS STEREO

A REAL ROAD WARRIOR

A REAL ROAD WARRIOR

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ULTIMATE EARS

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EXPLORE

SUPPORT

WONDERBOOM 4

Color Hyper Pink

Specs and Compatibility

Materials and Sustainability

In the Box

Software and Support

SURPRISINGLY BIGGER 360 SOUND

NEW PODCAST MODE

NEW PODCAST MODE

HOURS OF WONDER

HOURS OF WONDER

BEATS DUST, SPLASHES, AND FLOATS

BEATS DUST, SPLASHES, AND FLOATS

DOUBLE UP FOR SERIOUS STEREO

DOUBLE UP FOR SERIOUS STEREO

A REAL ROAD WARRIOR

A REAL ROAD WARRIOR