Ultimate Ears WONDERBOOM 4 Waterproof Speaker
- 14 hours of playtime
- IP67, submersible in 1 m of water for 30 min
- 131 feet (40 meters) wireless range
- 360-degree sound from one speaker
- Pairs two speakers for stereo
- 31% post-consumer recycled plastic minimum by weight
- Floats, dustproof
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small waterproof speaker that floats and plays sound in every direction. Fourteen hours is enough for a day out, but weight, size and Bluetooth version are missing from the listing.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0BRXJ9WTDModel: 984-001876Category: Portable Bluetooth Speakers
Colors Available
Need a different one? Pick on Amazon →
Overview
A pool-party host, hiker or beach visitor gets a compact speaker that fills the space with sound in all directions. It floats, resists dust and survives a dunk, and a second unit joins it for stereo.
The rating covers dunks and dust, which suits the water, and the floating body is easy to retrieve. Outdoor Boost raises the sound for open air, and Podcast Mode is built for speech. The listing leaves out size and weight.
Who it's for
Outdoor listeners, pool owners and campers who want sound that carries around a group. Buyers who want a long battery of several days, or full dimensions on the page, will not find them here.
Pros and cons
- Floats and survives submersion
- Sound in every direction
- Outdoor Boost and Podcast modes
- Two speakers pair for stereo
- Weight and dimensions not listed
- Playtime ends within a day
- Bluetooth version not given
Performance notes
Sound comes from a design that radiates in every direction, so placement in the middle of a group works better than facing a wall. Outdoor Boost shifts the tuning for open air. The battery lasts up to the listed hours at moderate volume, and the waterproof rating covers dunks.
Specifications
| Brand | Ultimate Ears |
|---|---|
| Model | 984-001876 |
| Capacity & performance | |
| Bluetooth Range | 131 feet (40 meters) |
| Audio Output Mode | 360-degree, stereo with a second speaker |
| Power & efficiency | |
| Battery Average Life | 14 hours |
| Construction & materials | |
| Enclosure Material | Minimum 31% post-consumer recycled plastic by weight |
| Color | Black |
| Other details | |
| Water Resistance Level | IP67, 1 m for 30 min |
| Is Waterproof | Yes |
| Additional Features | Outdoor Boost, Podcast Mode |
Frequently asked questions
How do I pair two WONDERBOOM 4 speakers for stereo?
The listing says you can pair up two WONDERBOOM 4 speakers for bigger sound. It does not describe the steps.
Can the WONDERBOOM 4 go in a pool?
Yes. It is IP67 rated and can be submerged in 1 m of water for 30 minutes. It also floats.
How long does the WONDERBOOM 4 play on a charge?
The listing says up to 14 hours of playtime.