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Ultimate Ears

Ultimate Ears WONDERBOOM 4 Waterproof Bluetooth Outdoor Speakers with Big Bass & 360-Degree Sound, Dustproof Floating Wireless Speaker, 131ft Range - Black

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Mar 12
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Color: Black


Features

  • 14 Hours of Boom: This waterproof portable speaker bluetooth booms on with up to 14 hours of playtime, ensuring you soak up every moment with your bluetooth speakers
  • Double Up for Stereo: Pair two WONDERBOOM 4 portable Bluetooth speakers for bigger sound; press once to double up; press again for true stereo, with left and right channels
  • Surprisingly Bigger 360-Degree Sound: The WONDERBOOM 4 portable waterproof Bluetooth speaker features bigger 360-degree sound in a small Bluetooth speaker package; boosted sound for up to 14 hours of playtime.
  • Outdoor Boost and Podcast Mode: The outdoor bluetooth waterproof speaker is engineered for full stereo sound; tap the Outdoor Boost button for outdoor environments with; Podcast Mode makes vocals rich and clear
  • Waterproof, Dustproof, and Floatable: IP67-rated bluetooth shower speaker can be submerged in 1m of water for 30 min; protected from dust; suitable for pool, beach, or shower

Description

The Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker is a floating Bluetooth speaker that is ultra portable 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 bluetooth speaker is waterproof, dustproof, and floats. Take it to the pool, the beach, or use it as a bluetooth speaker for shower. Experience amazing sound—wherever life takes you with these wireless speakers with bluetooth. Suitable for outdoor adventures, this speakers bluetooth wireless features make for a loud bluetooth speaker. Whether as portable speakers for outdoor or for indoor use, this bluetooth speaker is a practical choice. Great for those on the go, enjoy wireless speakers that deliver powerful sound in any setting.

Brand: Ultimate Ears


Speaker Maximum Output Power: 10 Watts


Frequency Response: 75 Hz


Connectivity Technology: Bluetooth


Audio Output Mode: Stereo


Mounting Type: Freestanding


Material: Plastic


Model Name: Wonderboom 4


Speaker Type: Outdoor


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


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


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


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 4 2


Color: Black


Included Components: Wonderboom 4 Black


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


Item Weight: 1.19 Pounds


Is Waterproof: True


Warranty Type: Limited


Maximum Range: 131 Feet


Number of Items: 1


Control Method: Touch


Wireless Communication Technology: Bluetooth


Speaker Size: 40 Millimeters


Power Source: Battery Powered


Tweeter Diameter: 0.75 Inches


Water Resistance Level: Waterproof


Number of Batteries: 1 Lithium Polymer batteries required.


Audio Driver Type: Dynamic Driver


Bluetooth Range: 40 Meters


Audio Driver Size: 40 Millimeters


Subwoofer Connectivity Technology: Wireless


Number Of Circuits: 1


Series Number: 4


Specific Uses For Product: Gaming, Party, Travel


UPC: 097855189943


Style: Wonderboom 4


Indoor/Outdoor Usage: Outdoor


Global Trade Identification Number: 43


Manufacturer: Logitech


Shape: rounded rectangular


Item Weight: 1.19 pounds


Item model number: 984-001876


Batteries: 1 Lithium Polymer batteries required.


Date First Available: June 26, 2024


Battery Capacity: 14 Milliamp Hours


Frequently asked questions

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

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great sound, solid little but hefty system!
Color: Black
Excellent speaker system! I wanted a sound as good as an Alexa, but without the internet snoopin...errr connectivity. This speaker faithfully picks up the bluetooth from your devices and plays with rich tones--high and low. I found the white Plus and Minus a bit conspicuous so I painted them black to match the speaker. One charge on the system lasts a good deal of time..I haven't found out how long yet..on my 3rd day of use! ... show more
Reviewed in the United States on December 29, 2025 by Snoo
    • Great little speaker.
Color: Black
Really fun speaker. A breeze to set up and has great sound for its size. Good for kitchen, den, bathroom or any small area, but also versatile and works great in small outdoor areas too. Will play anything on your phone or other Bluetooth source. I may buy one or two more. Highly recommended.
Reviewed in the United States on February 1, 2026 by Paul B.
    • Audio Perfection
Color: Pink
These speakers are friggin awesome. Got one for each of my parents for their birthdays this year. The audio is crystal clear and it also gets very loud for its size without compromising the audio quality. Great for both music and podcasts etc. Also love that you can attach a carabineer to the speaker so you can hook it onto your pants or backpack etc and have the speaker effortlessly follow you around. The different settings/features are also really cool and handy. Would definitely recommend this product and honestly any product from the Ultimate Ears speaker line as in my personal opinion this line of speakers is the best line of portable speakers I know of or have ever heard. They're priced well too. I mean they aren't super cheap but they aren't overly expensive either, it's kinda right in that sweet spot. If you've got the money and you're looking for a portable speaker, look no further than this line because the sound quality and loudness (without distortion) you really won't find anywhere else especially for these prices. I know I'm starting to sound like a UE shill at this point lol but honestly I just really do love and admire their speakers and don't think they get the credit they deserve. Anyway hope this helps! ... show more
Reviewed in the United States on January 17, 2026 by Dgiberkeley
    • This Speaker Is Possessed by a Much Larger, Angrier Speaker
Color: Black
The Ultimate Ears WONDERBOOM 4 is built like a friendly little bean and sounds like it does CrossFit and drinks black coffee for fun. I turned it on and my house said, “Oh. We’re doing this now.” The bass showed up uninvited and started rearranging the furniture emotionally. The 360-degree sound is real. I walked in a circle around it like an idiot and the music followed me like a curse. I put it in the shower. Loud. I put it by the pool. Louder. I dropped it in the pool. It floated. Still yelling. I walked away from my phone. Then I walked farther. Then I forgot where my phone was. Music never stopped. This speaker is loyal to a fault and clearly doesn’t respect personal space. Battery lasts forever. Pairing takes half a second. Survives water, dust, and my playlist decisions. Five stars. If this thing gets any louder it’s going to start paying rent. ... show more
Reviewed in the United States on February 7, 2026 by 1Bama1
    • Sound and convenience.
Color: Black
Easy connection, great sound, long charge and easy to transport. Great quality and compatible with iPad and iPhone and sync 2 speakers to play together.
Reviewed in the United States on February 6, 2026 by DMW
    • GREAT BUT BATTERY RECHARGING IS RIDICULOUS
Color: Pink
Overall this thing is super. Great sound, easy to pair & use, tremendous volume & decent battery life. The one unbelievable idiotic feature is battery charging. There's no light or sound to tell you ACCURATELY how full the battery currently is. If you press a button it will say "Normal Battery Level Enjoy The Music" when the stupid thing is somewhere between 36% & 100%. Are you kidding me? 36% is barely 1/3 full & there's nothing to indicate if it's actually 40%, 57%, 84% or 100%. What kind of engineer came up with this & how did it possibly get all the way into production with no one saying, "this is the dumbest thing we've ever made". I had a rechargeable speaker for my 2nd Gen iPod in 2002 with 4 little red lights, 1 light meant 25% charged, 2 lights 50% & so on. Simple, clear & easy, didn't need to talk to tell me absolutely nothing. So now 24 years later & these rocket surgeons can't pull this off with all the advancements in tech over the last 2 decades? ... show more
Reviewed in the United States on February 27, 2026 by John P.
    • Powerful Mini Speaker. Great Value. Looks Great.
Color: Blue
This speaker is quality in a greatly packaged size. The play time is superb on one charge. The design is also very aesthetically pleasing. The sound is so enormous, you would never think such boom is coming from this compact device. I recommend the WONDERBOOM 4 to anyone looking for a speaking that packs more than it suggests. ... show more
Reviewed in the United States on January 3, 2026 by Joneil B.
    • The Perfect gift for a Teen or golfer. Our third one! We keep giving that as gifts.
Color: Blue
Review Image by 200 Fingers & Toes | Chasing Our Dreams While Chasing Our Kids 200 Fingers & Toes | Chasing Our Dreams While Chasing Our Kids
This is the third Wonderboom we have bought. We love giving them as gifts for teens. Mine goes with me everywhere. I love listening to a book while in the bath, or music outside while gardening. My husband takes it out with us on the golf course. The sound is so much better than my phone. Good base and clarity. The price is great for the quality. I rarely lose connection unless I forget what I am doing and step outside. ... show more
Reviewed in the United States on February 17, 2026 by 200 Fingers & Toes | Chasing Our Dreams While Chasing Our Kids 200 Fingers & Toes | Chasing Our Dreams While Chasing Our Kids

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