Does the WONDERBOOM 4 float?

Yes. It is rated IP67 for dust and water and is designed to float, so it can be retrieved from a pool.

Can I pair two WONDERBOOM 4 speakers?

Yes. Two units can be paired for stereo sound, and it also pairs with earlier WONDERBOOM models.

How long does the battery last?

Ultimate Ears rates playback at up to 14 hours per charge.

Does it have a microphone for calls?

No. The WONDERBOOM 4 is a speaker only, with no speakerphone or mic.

The speaker and a USB-C charging cable. A power adapter is not included.

Is it worth it over the WONDERBOOM 3?

The 4 keeps the same rugged floating design and 14-hour battery; the main gains are the recycled plastic build and USB-C charging, so the 3 remains a solid alternative if you find it.

Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker

Best price now

$64.99at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker

Best price now

$64.99at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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Price facts

Last seen at $64.99 at Walmart on Nov 10.

Our take on the Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker

The WONDERBOOM 4 is Ultimate Ears' smallest rugged Bluetooth speaker, built for outdoor use with a 360-degree driver layout, IP67 dust and water rating, and a floating body. It runs up to 14 hours per charge and pairs two units for stereo. Against rivals like the JBL Go and Clip series it trades a little portability for fuller sound and a tougher, floating shell; owners praise the loudness and durability, while some find the bass modest and wish for an app with EQ.

Best forPool, beach and shower useTravelers who want a tough, light speakerCasual listeners who value loudness over deep bassBuyers wanting a second unit for stereo pairing

Pros

IP67 waterproof, dustproof and floats
360-degree sound that fills a room or patio
Up to 14 hours of playback
Stereo pairing with a second WONDERBOOM
Rugged, drop-friendly build
Made with at least 31% certified post-consumer plastic

Cons

Bass is modest for the size
No companion app or EQ control
No speakerphone or microphone
Charges over USB-C but no adapter in the box
Single-unit stereo only through a second speaker

Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker prices at every store

WalmartNew
In stockSold by Newegg Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$64.99Free shippingChecked Nov 10
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What reviewers say

4.5 / 533 ratings

Owners rate it highly for loud, clear 360-degree sound and a rugged body that survives water and drops. Common complaints are limited bass and the lack of an app or speakerphone.

What people mention

SoundPraisedOwners say it plays louder and clearer than its size suggests, with 360-degree coverage.
BassCriticisedSeveral note the low end is modest and thins out when pushed loud.
DurabilityPraisedBuyers report it surviving pool dunkings, sand and drops without issue.
BatteryPraisedUsers find the 14-hour rating realistic for typical listening.
AppCriticisedReviewers miss an app for EQ and firmware updates.

About the Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker

The Ultimate Ears WONDERBOOM 4 is an ultraportable Bluetooth speaker that plays 360° sound. The sound is crisp and bassy. Battery life is up to 14 hours.

It has an IP67 rating, so it is waterproof and dustproof, and it floats. It can be used at the pool, at the beach or in the shower.

It is made with a minimum of 31% certified post-consumer plastic, which gives new life to PET bottles.

Connectivity: Bluetooth
Sound: 360° sound, full stereo
Battery life: 14 hours
Water resistance: IP67: waterproof, dustproof, floats
Materials: Minimum of 31% certified post-consumer plastic
Color: Gray

Specifications

actual_color: GraySource
color: GraySource
size: One SizeSource

Questions and answers

Does the WONDERBOOM 4 float?: Yes. It is rated IP67 for dust and water and is designed to float, so it can be retrieved from a pool.
Can I pair two WONDERBOOM 4 speakers?: Yes. Two units can be paired for stereo sound, and it also pairs with earlier WONDERBOOM models.
How long does the battery last?: Ultimate Ears rates playback at up to 14 hours per charge.
Does it have a microphone for calls?: No. The WONDERBOOM 4 is a speaker only, with no speakerphone or mic.
What is in the box?: The speaker and a USB-C charging cable. A power adapter is not included.
Is it worth it over the WONDERBOOM 3?: The 4 keeps the same rugged floating design and 14-hour battery; the main gains are the recycled plastic build and USB-C charging, so the 3 remains a solid alternative if you find it.
Where is the Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker cheapest?: At Walmart, for $64.99, as of our latest check.
What do buyers say about the Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker?: Rated 4.5 out of 5 from 33 ratings.