---
product_id: 638059449
title: "WONDERBOOM 4 Portable Waterproof Speaker - Black"
brand: "ultimate ears"
price: "¥25127"
currency: JPY
in_stock: true
reviews_count: 13
category: "Ultimate Ears"
url: https://www.desertcart.jp/products/638059449-wonderboom-4-portable-waterproof-speaker-black
store_origin: JP
region: Japan
---

# IP67 waterproof & dustproof 360° balanced sound 14 hrs battery life WONDERBOOM 4 Portable Waterproof Speaker - Black

**Brand:** ultimate ears
**Price:** ¥25127
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your sound game anywhere, anytime—because ordinary just won’t do.

## Quick Answers

- **What is this?** WONDERBOOM 4 Portable Waterproof Speaker - Black by ultimate ears
- **How much does it cost?** ¥25127 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/638059449-wonderboom-4-portable-waterproof-speaker-black)

## Best For

- ultimate ears enthusiasts

## Why This Product

- Trusted ultimate ears brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Adventure:** IP67-rated waterproof, dustproof, and floatable—your ultimate poolside companion.
- • **Eco-Conscious Design:** Crafted with 31% post-consumer recycled plastic—sound that’s sustainable.
- • **All-Day Playback Power:** Keep the vibe alive with up to 14 hours of uninterrupted boom.
- • **Seamless Stereo Pairing:** Double the speakers, double the impact with true left-right stereo sound.
- • **Immersive 360° Sound Experience:** Fill every corner with rich, balanced audio that turns heads.

## Overview

The Ultimate Ears WONDERBOOM 4 is a compact, ultra-portable Bluetooth speaker delivering powerful 360-degree sound with 14 hours of battery life. Engineered for outdoor use, it boasts an IP67 rating for waterproof, dustproof, and floatable durability. Featuring Outdoor Boost and Podcast Mode, plus the ability to pair two speakers for true stereo, it’s designed for millennials who demand premium sound quality and eco-conscious craftsmanship on the go.

## Description

The Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker is a floating Bluetooth speaker that is ultra portable with surprisingly bigger, 360-degree sound. It’s crisp, bassy, and ready to go with 14 hours of boom. The IP67 rating means this wireless bluetooth speaker is waterproof, dustproof, and floats. Take it to the pool, the beach, or use it as a bluetooth speaker for shower. Experience amazing sound—wherever life takes you with these wireless speakers with bluetooth. Suitable for outdoor adventures, this speakers bluetooth wireless features make for a loud bluetooth speaker. Whether as portable speakers for outdoor or for indoor use, this bluetooth speaker is a practical choice. Great for those on the go, enjoy wireless speakers that deliver powerful sound in any setting.

Review: Perfect little waterproof speaker - I bought this to affix to a Paddle North lake float and it's a perfect match. Our pontoon doesn't have external speakers so I wanted something with good sound that won't sink to the bottom of the lake if my mount disengages. It can get plenty loud and the sound isn't shabby for such a small speaker. I leave it in the default startup sound profile - which it reverts to with every startup. The "outdoor mode" is a wee bit louder and definitely brighter but doesn't anything that can't be obtained with Spotify's equalizer. The podcast mode sounds like an AM radio and I can't envision ever using it unless I want to be reminded how well the default mode is. The speaker has the usual UE build quality I'm used to and so far we haven't run out of juice after several hours of use. This will also make a great travel companion for hotel rooms/pool side listening and desertcart has some nice inexpensive travel cases for under $15. This won't compete with larger speakers for sound quality but for what it is and what I need, the performance and price are unbeatable.
Review: Great for the Beach! - Bought this speaker for my beach trip. Wasn’t worried about water or sand with this speaker. It has a very clean sound, can get pretty loud for its size. Bass is okay, but expected for speaker of this size. The build quality is great, very portable, battery lasted the entire day at the beach and night. Never had a connection problem with Bluetooth either. Overall a great speaker for the price.

## Features

- Balanced 360-Degree Sound: The WONDERBOOM 4 portable waterproof Bluetooth speaker features 360-degree sound in a petite package; boosted sound for up to 14 hours of playtime
- Outdoor Boost and Podcast Mode: Engineered for full stereo sound; tap the Outdoor Boost button for outdoor environments; use the new Podcast Mode to make vocals sound rich and clear
- 14 Hours of Boom: With a rechargeable battery that lasts throughout the day, this waterproof portable speaker booms on with up to 14 hours of playtime, so you can soak up every moment; Charging via USB-C cable (not included)
- Waterproof, Dustproof, and Floatable: IP67-rated this Bluetooth waterproof speaker can be submerged in 1m of water for 30 min; protected from dust; ideal for the pool, beach, or shower
- Double Up for Stereo: Pair up two WONDERBOOM 4 portable Bluetooth speakers for even bigger sound; press once to double up; press again for true stereo from both speakers, with left and right channels (not compatible with PartyUP)
- Durable Wireless Speaker With Range: 131 feet (40 meters) of range so you’re free to roam; plus it’s dirt-resistant and drop-proof (1) with a handy loop so you can take it with you
- Made With Recycled Plastic: Plastic parts in the WONDERBOOM 4 wireless Bluetooth speaker include a minimum of 31% post-consumer recycled plastic by weight
- (1) Drop-tested from 5 ft / 1.5 m

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BRXJ9WTD |
| Additional Features | Dustproof, Lightweight, Portable, Shockproof, Waterproof |
| Age Range Description | Teen and Adult |
| Antenna Location | For Computers, For Smartphones or Tablets |
| Audio Driver Size | 40 millimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 14 hours |
| Battery Capacity | 14 milliamp_hours |
| Best Sellers Rank | #409 in Electronics ( See Top 100 in Electronics ) #16 in Portable Bluetooth Speakers |
| Bluetooth Range | 40 meters |
| Brand | Ultimate Ears |
| Built-In Media | Wonderboom 4 Black |
| Color | Black |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet, Television |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | Touch |
| Controller Type | Battery Powered |
| Customer Reviews | 4.4 out of 5 stars 2,809 Reviews |
| Enclosure Material | Carbon Steel |
| Frequency Response | 75 hertz |
| Global Trade Identification Number | 00097855189943 |
| Is Waterproof | True |
| Item Dimensions D x W x H | 4"D x 4"W x 8"H |
| Item Weight | 1.2 pounds |
| Manufacturer | Logitech |
| Maximum Range | 131 feet |
| Model Name | Wonderboom 4 |
| Model Number | 984-001876 |
| Mounting Type | Freestanding |
| Number Of Circuits | 1 |
| Number of Audio Channels | 4 2 |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Series Number | 4 |
| Speaker Maximum Output Power | 10 watts |
| Speaker Size | 40 millimeters |
| Speaker Type | Outdoor |
| Specific Uses For Product | Gaming, Party, Travel |
| Subwoofer Connectivity Technology | Wireless |
| Tweeter Diameter | 0.75 inches |
| UPC | 097855189943 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Limited Hardware Warranty |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Ultimate Ears
- **Connectivity Technology:** Bluetooth
- **Frequency Response:** 75 hertz
- **Speaker Maximum Output Power:** 10 watts

## Images

![WONDERBOOM 4 Portable Waterproof Speaker - Black - Image 1](https://m.media-amazon.com/images/I/71O-9Qt8GXL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect little waterproof speaker
*by J***A on September 15, 2026*

I bought this to affix to a Paddle North lake float and it's a perfect match. Our pontoon doesn't have external speakers so I wanted something with good sound that won't sink to the bottom of the lake if my mount disengages. It can get plenty loud and the sound isn't shabby for such a small speaker. I leave it in the default startup sound profile - which it reverts to with every startup. The "outdoor mode" is a wee bit louder and definitely brighter but doesn't anything that can't be obtained with Spotify's equalizer. The podcast mode sounds like an AM radio and I can't envision ever using it unless I want to be reminded how well the default mode is. The speaker has the usual UE build quality I'm used to and so far we haven't run out of juice after several hours of use. This will also make a great travel companion for hotel rooms/pool side listening and Amazon has some nice inexpensive travel cases for under $15. This won't compete with larger speakers for sound quality but for what it is and what I need, the performance and price are unbeatable.

### ⭐⭐⭐⭐⭐ Great for the Beach!
*by S***C on August 17, 2026*

Bought this speaker for my beach trip. Wasn’t worried about water or sand with this speaker. It has a very clean sound, can get pretty loud for its size. Bass is okay, but expected for speaker of this size. The build quality is great, very portable, battery lasted the entire day at the beach and night. Never had a connection problem with Bluetooth either. Overall a great speaker for the price.

### ⭐⭐⭐⭐⭐ Definitely in the "You Can't Go Wrong With It" category.
*by R***M on August 13, 2026*

Great speaker. I have tried several brands of these bt speakers; Tribit, Soundcore, Harmon Kardon, Bose, B&O and a few others. None compare to this for the qualities I want in a bluetooth speaker. I see it as a personal speaker for listening to music privately and for podcasts. I have a nice stereo system for serious listening, but it's not always convenient to do that. What I found was that there is a lot of sound profile manipulation by the producers of these products favoring bass output, because that's what a large portion of the buying public thinks is "good sound", with the resulting side effects on the rest of the profile.. The Wonderboom might tweak it a little, but not even close to overdone. The sound quality is really solid, including the mids and trebles. Clear and full; undistorted. Bass is solid, but balanced. Clearly present but not obnoxious. That's number one. It is light, and it is the easiest to use of the bunch. The 360 degree sound is a real plus and does fill the room. It is well protected against dust and moisture, and it floats if you drop it in the lake. It is very nicely shaped, easy to pick up, hold, carry , pack. Use it anywhere. It also has zero over compensating frills, like apps and equalizers, which are a total waste of time on something that you just want to work and not have to fuss over. This one does just that, and it has better sound quality than all the others tested, except the Luna 2 and B&O a1, but, at lower volumes it is pretty much indistinguishible.. I've sent one to my son and one to my daughter, who took it to the lake house last weekend and said it was a real hit on the dock and the boat with over a dozen people in the group, whom she said were universally complimentary. It does have two adjustments. The basic mode is "standard'. Push the button once and it gives you an "outdoor boost"; again and you get "podcast mode", which I found not to be necessary, but it does help if there is ambient noise, like, say, a shower. I also tried it in stereo with another unit and it's great. I don't really need that function, but I just might hang onto the second one and do the stereo anyway. These these little guys are affordable enough that you can get two for less than a competitive single unit will cost and you can bet that they'll sound better. Great product. Well conceived, well designed and well executed. A truly great product.

## Frequently Bought Together

- Ultimate Ears WONDERBOOM 4 Waterproof Bluetooth Outdoor Speakers with Big Bass & 360-Degree Sound, Dustproof Floating Wireless Speaker, 131ft Range - Black
- LTGEM Case Compatible with Ultimate Ears WONDERBOOM 4/3/2 Portable Waterproof Speaker, Black+Gray

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-01*