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

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

Key item features

  • Powerful Audio: Delivers bigger 360-degree sound with enhanced bass, offering 14 hours of playtime for extended use.
  • Versatile Modes: Features an Outdoor Boost for environmental sound optimization and a Podcast Mode for clear, rich vocal reproduction.
  • Robust Durability: Boasts an IP67 rating, making it waterproof, dustproof, and floatable, suitable for various environments including pools and beaches.
  • Stereo Pairing: Allows for pairing two WONDERBOOM 4 speakers for amplified sound, with an option for true stereo separation of left and right channels.
  • Portable Design: Designed for portability with a 131 ft range, dirt resistance, drop-proof construction, and a convenient loop for carrying.
  • Sustainable Build: Constructed with a minimum of 31% certified post-consumer plastic, contributing to environmental sustainability.
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Current price is $64.00
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Arrives by Fri, Jun 12
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4.181818181818182 stars out of 5, based on 176 seller reviews(4.2)
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Ships in the manufacturer's original packaging, which may reveal the contents.

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4.6 out of 5 stars
stars25 ratings14 reviews
How item rating is calculated
  1. 5 stars88% (22)
  2. 4 stars0% (0)
  3. 3 stars4% (1)
  4. 2 stars4% (1)
  5. 1 star4% (1)
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Showing 1-3 of 14 reviews

Feb 21, 2026
Disappointed
Sold byThe Deal SourceDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Great full sound

The Wonderboom 4 is a rugged beast. For something that fits in your palm, the sound is remarkably full for its small size, delivering punchy 360-degree audio that doesn't thin out outdoors. With its waterproof build and new USB-C charging, it's the ultimate no-fuss speaker for any adventure.

Incentivized Review
Helpful?144NSBT5WW057386316190
Jun 4, 2026
Teresita
Sold byThe Deal SourceDelivered byWalmart
5 out of 5 stars review

Verified Purchase

This is a gr8 item. Nice because it's compact with a punch in sound for its size. I use it on my bicycle %26 when I go for walks. I bought a velcro aparatus so I could strap the item on my bicycle. Not disappointed at all with my purchase. I also bought a carrying case so I can store it when I'm not using it, which also purchased from Amazon. Highly recommended.

Incentivized Review
Helpful?144NSBT5WW057386316190
Jan 31, 2026
Jacob
5 out of 5 stars review

Seller Verified Purchase

BOOMIN'

I like to move it, move it. I like to groove it, groove it. I'm big on shmoove it, shmoove it. The WONDERBOOM 4 brings the noise, boom-boom. It's a good radio replacement until I figure out how to install my car radio.

Review from Ultimate Ears
Helpful?144NSBT5WW057386316190