Search  for anything...
Ultimate Ears

Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker with Big Bass and 360-Degree Sound, Dustproof Floating Speaker with 131ft (40m) Range - Pink

  • Based on 788 reviews
Condition: New
Checking for product changes
$78.92 Why this price?
Save $21.07 was $99.99

Buy Now, Pay Later

As low as $13.15 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jun 12
Order within 10 hours and 20 minutes
Available payment plans shown during checkout

Color: Pink


Features

  • Surprisingly Bigger 360-Degree Sound: The WONDERBOOM 4 portable waterproof Bluetooth speaker features bigger 360-degree sound in a petite package; boosted sound for up to 14 hours of playtime
  • Outdoor Boost and Podcast Mode: Engineered for full stereo sound; tap the Outdoor Boost button for outdoor environments; use the new Podcast Mode to make vocals sound rich and clear
  • 14 Hours of Boom: With a battery that lasts throughout the day, this waterproof portable speaker booms on with up to 14 hours of playtime, so you can soak up every moment
  • Waterproof, Dustproof, and Floatable: IP67-rated this Bluetooth waterproof speaker can be submerged in 1m of water for 30 min; protected from dust; ideal for the pool, beach, or shower
  • Double Up for Stereo: Pair up two WONDERBOOM 4 portable Bluetooth speakers for even bigger sound; press once to double up; press again for true stereo from both speakers, with left and right channels
  • Durable Wireless Speaker With Range: 131 feet (40 meters) of range so youre free to roam; plus its dirt-resistant and drop-proof (1) with a handy loop so you can take it with you
  • Made With Recycled Plastic: Plastic parts in the WONDERBOOM 4 wireless Bluetooth speaker include a minimum of 31% post-consumer recycled plastic by weight
  • (1) Drop-tested from 5 ft / 1.5 m

Description

The Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker is a floating Bluetooth Speaker that is ultra portable and with surprisingly bigger, 360-degree sound. It’s crisp, bassy, and ready to go with 14 hours of boom. The IP67 rating means this wireless speaker is waterproof, dustproof, and floats. Take it to the pool, the beach, or even the shower. Experience amazing sound—wherever life takes you.

Brand: Ultimate Ears


Speaker Maximum Output Power: 10 Watts


Connectivity Technology: Bluetooth


Audio Output Mode: Stereo


Mounting Type: Tabletop Mount


Material: Post-consumer recycled plastic


Model Name: Wonderboom 4


Speaker Type: Outdoor


Special Feature: Portable, Waterproof, Lightweight, Dustproof, Shockproof


Recommended Uses For Product: For Computers, For Smartphones or Tablets


Compatible Devices: Laptop, Desktop, Television, Tablet, Smartphone


Unit Count: 1.0 Count


Controller Type: Battery Powered


Surround Sound Channel Configuration: 2.0


Color: Pink


Battery Life: 14 Hours


Included Components: Wonderboom 4 Pink


Product Dimensions: 4"D x 4"W x 8"H


Is Waterproof: True


Warranty Type: Limited


Maximum Range: 131 Feet


Number of Items: 1


Control Method: Remote


Wireless Communication Technology: Bluetooth


Speaker Size: 40 Millimeters


Power Source: Battery Powered


Water Resistance Level: Waterproof


Customer Package Type: [A]


Number of Batteries: 1 Lithium Polymer batteries required. (included)


Audio Driver Type: Dynamic Driver


Subwoofer Connectivity Technology: Wireless


Connectivity Protocol: Bluetooth


Includes MP3 player?: No


Specific Uses For Product: Travel, Party, Gaming


UPC: 097855189967


Style: Feminine, Modern


Manufacturer: Logitech


Item Weight: 1.21 pounds


Item model number: 984-001878


Batteries: 1 Lithium Polymer batteries required. (included)


Date First Available: June 26, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellant quality product, sounds terrific! Fantastic buy!
Color: Black
Works great, the sound quality is fantastic! projects exceptionally well. Has a podccast setting. The standard setting is a little heavy on the base, but I missplaced the manuel so I don't know if It can be adjusted. It turns off when not in use, its the perfect size, really like that you can hang it up. Cennnectivity is easy, stays connected all the time you don't have to keep connecting every time it turns off like cheaper speakers. The battery lasts for days, it works while charging that a bonus and they have color options. Its very well designed and made. Good value for the money, you get what you pay for this speaker is definatly worth the price, its a high quality product. You will not be dissappointed. ... show more
Reviewed in the United States on February 3, 2025 by Jonathan W Landers
    • Exceptional Travel Speakers
Color: Blue
I have a pair of Boom 2's, several years old, that I've been using in the shower and also for travel. After about 8 years, the batteries are getting old, and the speakers are also a little bit heavy for travel. After reading the review on Rtings.com, and seeing the great Black Friday pricing, I've ordered a pair of these. I'm happy to report they sound essentially equivalent to the Boom 2. If there's less bass, it's mostly imperceptible. The battery life is better even than the brand-new Boom 2. They're smaller and lighter to carry, they pair more easily, they can be put in stereo mode without using an app, and they're plenty loud enough for the shower, a hotel room, or for background music when the family gathers at an AirBnB. The overall sound quality is very good. No deep bass, of course, but enough so the music sounds balanced, and male voices on podcasts sound natural. Highs are extended enough for natural-sounding cymbals and strings, and the sound is clean and not distorted if the speakers aren't pushed. And exceptional travel speaker, even if you need two (and nothing beats stereo when you can separate the speakers properly). ... show more
Reviewed in the United States on March 8, 2025 by R. D. Clark
    • Small but mighty speaker!
Color: Pink
The Ultimate Ears WONDERBOOM is such a great little speaker! I was impressed right out of the box. The sound quality is amazing for something so compact—rich, clear, and with surprisingly powerful bass. The 360-degree sound really fills the space, whether I’m indoors or outside. It’s also super durable and waterproof, which makes it perfect for the pool, the beach, or just hanging out in the backyard. I’ve even dropped it a couple of times, and it’s held up without a scratch. The battery life is solid, lasting through long playlists and hours of use. What I love most is how portable it is—it’s lightweight and easy to toss in a bag for trips or adventures. Plus, the pink color is so fun and stylish! If you’re looking for a speaker that’s compact, reliable, and sounds fantastic, I can’t recommend this one enough. ... show more
Reviewed in the United States on January 3, 2025 by ewylie
    • Just has described!
Color: Pink
Review Image by Annastacia Annastacia
Review Image by Annastacia Annastacia
Review Image by Annastacia Annastacia
It’s soooo cuteee 🥹 and my fav color too. People tryna steal it from me lol. This boom box was definitely worth it. It’s a travel size(fits perfectly in my hands), very loud (bass is really nice) and it looks exactly as shown in the photo. It was hard for me to decide how to turn it on but YouTube was helpful. The quality is top notch, it’s very strong. Fell a few times and it was nothing! Material it’s made from is just perfect (giving sturdy rubber-typed) I haven’t tested the water proof theory as yet tho but will update once I do. It connects and work well. However, I had issues connecting to a new device after pairing with another before and had to reset the box in order for it to pair with another device (YouTube helped with that too). After using it more, it doesn’t seem to have any issues pairing with new devices, hope it continues. I hope that helped! ... show more
Reviewed in the United States on October 10, 2024 by Annastacia Annastacia
    • Great speakers but one major annoyance for me
Color: Blue
These speakers are splendid but my one ick is the loud start up and turn off sounds. They're cute but I really wish I had the option to turn it off. It's a little bit too loud for my liking and brings unnecessary attention when I want to play some music softly. Apparently the other UE speakers have the option to disable it on the app but the wonderbooms aren't compatible with the app. Sigh. Otherwise, these really are great speakers and great value for the money. I just can't use them as freely as I want to. If this isn't a non-issue for you, I think you'd be happy with them. ... show more
Reviewed in the United States on April 10, 2025 by Vaughn
    • Powerful Sound in a Compact Package
Color: Black
I couldn't be happier with my Ultimate Ears WONDERBOOM Bluetooth Speakers. The set of four speakers delivers robust, immersive sound with deep bass and impressive 360-degree audio that fills any room or outdoor space. One of the standout features of these speakers is their portability. They're lightweight, easy to carry, and, best of all, waterproof and dustproof. Whether I'm at the pool, the beach, or just at home, I know these speakers can handle it all. The fact that they float is an unexpected but fantastic bonus! The 131-foot range is another major plus. I’ve wandered all over my house and yard without losing connection, and the battery life is equally impressive, offering hours of uninterrupted playtime. The sleek black color looks stylish and modern. Overall, these speakers are a fantastic investment for anyone who loves high-quality, portable sound. Highly recommend! ... show more
Reviewed in the United States on September 25, 2024 by Nelson Lista
    • Keep the tunes going.
Color: Black
Our family owns three versions the boom, 2 and boom 3. They keep making them better! We probably have room for one more. I wish they linked more than 2 and I wished they linked with the other models. But totally worth it. Holds a long charge, sounds great and totally bomb proof (rugged).
Reviewed in the United States on April 3, 2025 by Ryan T. Zeulner
    • Perfect for the beach!
Color: Gray
Amazing sound from such a little speaker! Waterproof, and I love the different modes (outdoors, podcast. Etc.). Definitely worth the money.
Reviewed in the United States on April 5, 2025 by Renee Spencer

Can't find a product?

Find it on Amazon first, then paste the link below.