Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree, Bold, Immersive, Crystal-Clear Sound, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Lilac
Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree, Bold, Immersive, Crystal-Clear Sound, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Lilac
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Ultimate Ears

Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree, Bold, Immersive, Crystal-Clear Sound, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Lilac

Key item features

  • Portable Design: This Ultimate Ears Boom 4 model features a portable design, making it easy to transport for various activities and locations.
  • Robust Construction: The speaker boasts a waterproof construction, enhancing its durability and suitability for outdoor and aquatic environments.
  • Immersive Audio: Experience bold, immersive, and crystal-clear 360-degree sound delivery for a rich listening experience.
  • Floating Capability: Designed as a floating speaker, it is ideal for use in water, such as at poolside parties or beach adventures.
  • Extended Playtime: Enjoy up to 15 hours of battery life, providing prolonged music playback on a single charge.
  • Wireless Freedom: Benefit from Bluetooth connectivity with an impressive 147-foot (45-meter) wireless range for flexible audio streaming.
  • Vibrant Finish: The speaker comes in a distinctive and vibrant Lilac color finish.
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Current price is Now $119.99
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was $149.99
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Sold and shipped by Capri Electronics
4.1192660550458715 stars out of 5, based on 109 seller reviews(4.1)
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3.8 out of 5 stars
stars22 ratings17 reviews
How item rating is calculated
  1. 5 stars59% (13)
  2. 4 stars14% (3)
  3. 3 stars0% (0)
  4. 2 stars5% (1)
  5. 1 star23% (5)

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Showing 1-3 of 17 reviews

Sep 15, 2025
Doughgirl
5 out of 5 stars review

Seller Verified Purchase

Great for work

I needed a speaker for our office. Our other speaker was so good my husband has dibs on it during the workday. I wanted one that was easy to use, easy to connect, had great audio (when loud), and was cute sitting on my bookshelves at work. This one is it! Haven't tested any waterproof features since I work inside, but this is a great speaker.

Review from Ultimate Ears
Helpful?61BD1406AI937333816211
reply from Logitech Team

What a great review, thank you! We're so glad our speaker was the perfect solution for your office. It's awesome to hear you're finding it easy to use and that you love the sound and style. Enjoy the music at work!

Jan 21, 2026
Tom R
5 out of 5 stars review

Seller Verified Purchase

Rich sound!

I bought this as a gift after having a Boom 3 myself for the past 3 years. I absolutely love these speakers, as they have a rich sound and it fills the room. My son, who received the gift, loves his!

Review from Ultimate Ears
Helpful?61BD1406AI937333816211
Feb 3, 2026
Heidi
5 out of 5 stars review

Seller Verified Purchase

Cute color

This is such a cute color! The sound is amazing as well

Review from Ultimate Ears
Helpful?61BD1406AI937333816211