Customer Reviews for Ultimate Ears WONDERBOOM 4 Wireless Bluetooth Speaker, Cobalt Blue (984-001877)
Item # : IM1KS0754
Model # : 984-001877
- Portable Wireless Bluetooth Speaker: It is designed for versatile use, making it suitable for both indoor and outdoor environments
- Dimensions: 4.1 inches in height, 3.75 inches in width, and 3.75 inches in depth
Price is $134.00
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Over 30
9 reviews
Most helpful positive review
Posted Feb 27, 2026
Waterproof and powerful
Great speaker, high quality, and durable. Excellent battery life.
Lily C
Verified Buyer
Reviewed at:
Ultimate Ears
Posted Feb 27, 2026
Waterproof and powerful
Great speaker, high quality, and durable. Excellent battery life.
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Verified Buyer
Reviewed at:
Ultimate Ears
Posted Feb 5, 2026
No charging cable in box
It did not come with a charging cable but we found one around the house that worked.
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Eric
Verified Buyer
Reviewed at:
Ultimate Ears
Posted Sep 1, 2025
Great speaker
Pairs easily with my other Wonderboom, sounds great, charge lasts a long time, and the sound fills the room!
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