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  • Front. Ultimate Ears - BOOM 4 Portable Wireless Bluetooth Speaker with Waterproof, Dustproof and Floatable design - Cobalt Blue.
  • 360 Accurate Bass + Customizable EQ + Carefully Balanced
  • 15 Hours of Boom + Rechargeable 15-Hour Battery
  • VIRTUALLY INDESTRUCTIBLE WATERPROOF, DROP-PROOF, FLOATABLE IP67
  • Pair Up Several UE Speakers
  • The image features a blue speaker with a cross on it and a blue box next to it. The speaker has a Bluetooth pairing magic button, a power on/off button, and a volume control button. The blue box is labeled with the text "USB-C charging port." The speaker is made of 52% recycled plastic, as indicated by the FSC and NRUS labels.
  • Designed for a Positive Future. Made with Recycled Plastic. Responsible Packaging.
  • Ultimate Ears - BOOM 4 Portable Wireless Bluetooth Speaker video 3 minutes 34 seconds

About this item

Grab the super-portable wireless Bluetooth speaker that’s built for adventure. Seriously waterproof with balanced 360-degree sound, deep bass, and one-touch music controls, the Ultimate Ears BOOM 4 is the ultimate go-anywhere speaker. Experience four different EQ modes or customize yourself. You can even pair the BOOM 4 Bluetooth waterproof speaker with MEGABOOM, EVERBOOM, EPICBOOM and HYPERBOOM portable Bluetooth speakers for more fun. The BOOM 4 is an extremely wireless speaker with 147 feet of range, so you can walk away and keep the tunes comin’. Long-press the Magic Button to access your playlists, or set up one-touch playlists on your favorite streaming platforms like Spotify, Amazon Music on Android,* and Apple Music on iOS. Ultimate sound. Made to wander. 

Review Summary

Rating 4.4 out of 5 stars with 47 reviews

Rating by feature

  • Rating 4.7 out of 5 stars

  • Rating 4.5 out of 5 stars

  • Rating 4.6 out of 5 stars

83%would recommend to a friend

Customers are saying

Customers are delighted by the BOOM 4's sound quality, frequently praising its clarity and loudness, even at higher volumes. Its portability and durability are also highlighted, with users appreciating its travel-friendly design. The speaker's affordability is another plus, with many considering it excellent value for the money. Overall, the positive feedback focuses on the audio performance and practical design of the BOOM 4.

This summary was generated by AI based on customer reviews.

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The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

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    Ultimate Ears

    Ultimate Ears - BOOM 4 Portable Wireless Bluetooth Speaker with Waterproof, Dustproof and Floatable design - Cobalt Blue

    Model:984-001967
    SKU:6588389
    Your price for this item is $149.99
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