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BOOM 4 � Cobalt Blue
BOOM 4 � Cobalt Blue
BOOM 4 � Cobalt Blue
BOOM 4 � Cobalt Blue
BOOM 4 � Cobalt Blue
BOOM 4 � Cobalt Blue
BOOM 4 � Cobalt Blue
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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 yoursel

  • Portable Bluetooth speaker with ultimate sound

    The BOOM 4 portable waterproof Bluetooth speaker delivers rich, 360-degree sound and deep, accurate bass, all carefully balanced so you can hear every note.

  • Powered for adventure

    This waterproof portable speaker has a rechargeable battery that stays powered, pumping tunes for 15 hours on a single charge.*

  • A mobile speaker made for the outdoors

    Rated IPX7 waterproof and drop-proof up to 15 feet (1.5 meters), the BOOM 4 floating Bluetooth speaker is virtually indestructible.

  • Pair several BOOM 4 speakers using the Ultimate Ears | BOOM app

    Use PartyUp on the Ultimate Ears Boom app to pair several BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers, creating the ultimate surround sound experience.

  • Magic button one-tap control on BOOM 4

    Play, pause, skip, and control music directly from your favorite streaming service; set up one-touch playlists on platforms like Spotify, Amazon Music on Android, or Apple Music on iOS.

  • Extremely wireless and portable speaker

    With 147 feet of range, you can walk away from your BOOM 4 wireless speaker and keep the tunes comin’.**

  • Made with recycled plastic

    The plastic parts in the Ultimate Ears BOOM 4 wireless Bluetooth speaker include a minimum of 52% post-consumer recycled plastic by weight (excluding packaging).


UPC: 97855197696
Model: 984-001967

BOOM 4 � Cobalt Blue 57% off Flash Deal

Ultimate EarsSKU: 5661243_MR
Refurbished

4 interest-free installments, or from $5.86/mo with shop

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Condition: Refurbished

Restored to working condition by a manufacturer or refurbisher; cosmetic wear and packaging may vary.

Product Conditions Guide

Refurbished Refurbished
Authorized Seller Authorized Seller

Meet Secondipity. We find the best deals.

What does "refurbished" actually mean?
It means the item was inspected, cleaned, functionally tested and restored to full working order by a qualified technician before being resold.
Are all refurbished items in equally good condition?
Each listing shows its condition: New, Open Box, Used or Refurbished. Review the item-specific details before you buy.
Do you accept returns?
Return eligibility, time limits and return shipping costs depend on the reason for return. Please review our Return Policy and obtain authorization before returning an item.

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More about this product & store

Shipping
What countries do you ship to?
Review our Shipping Policy for delivery destinations and restrictions. Contact customer service before ordering if you need clarification.
How long will it take to receive my order?
Most orders arrive within 3–5 business days of shipping confirmation.
Returns and Refunds
How do I return a product?
Start a return at our returns portal and obtain authorization before sending an item back. Eligibility and return shipping costs follow our Return Policy.
How long will it take to receive my refund?
Refund processing depends on receipt and inspection of the returned item. Please review our Return Policy or contact customer service for the status of your authorized return.
Refurbished
What does "refurbished" actually mean?
It means the item was inspected, cleaned, functionally tested and restored to full working order by a qualified technician before being resold.
Are all refurbished items in equally good condition?
No — each listing shows a condition grade (Used, Like New, or Open Box) so you know exactly what to expect before you buy.