---
product_id: 637998636
title: "Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue"
brand: "ultimate ears"
price: "1286 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Ultimate Ears"
url: https://www.desertcart.ro/products/637998636-ultimate-ears-boom-4-portable-bluetooth-speaker-waterproof-blue
store_origin: RO
region: Romania
---

# IP67 waterproof & drop-proof 360° balanced sound 15-hour rechargeable battery Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue

**Brand:** ultimate ears
**Price:** 1286 Lei
**Availability:** ✅ In Stock

## Summary

> 🎶 Take your soundtrack anywhere — loud, clear, and unstoppable!

## Quick Answers

- **What is this?** Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue by ultimate ears
- **How much does it cost?** 1286 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/637998636-ultimate-ears-boom-4-portable-bluetooth-speaker-waterproof-blue)

## 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

- • **One-Touch Magic Button:** Instantly control playlists from Spotify, Apple Music, and more without reaching for your phone.
- • **Endless Playtime Freedom:** Up to 15 hours of non-stop music powered by fast USB-C charging.
- • **Built to Brave the Elements:** IP67-rated waterproof and drop-proof up to 15 feet—adventure-ready and worry-free.
- • **Seamless PartyUp Connectivity:** Wirelessly link multiple Ultimate Ears speakers for an epic surround sound party.
- • **Immersive 360° Sound Experience:** Crystal-clear audio with deep bass fills every corner of your space.

## Overview

The Ultimate Ears Boom 4 is a compact, rugged Bluetooth speaker delivering 360-degree balanced sound with deep bass. Engineered for outdoor enthusiasts, it boasts an IP67 waterproof and drop-proof design, a 15-hour rechargeable battery with USB-C charging, and a 45-meter wireless range. Its Magic Button offers one-touch playlist control, while PartyUp lets you connect multiple UE speakers for immersive surround sound. Crafted with over 52% recycled plastic, the Boom 4 blends sustainability with premium audio performance.

## Description

Grab the super-portable Ultimate Ears 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 a great outdoor Bluetooth speakers waterproof wireless option. Experience four different EQ modes or customize yourself. You can even pair the BOOM 4 Bluetooth waterproof speaker with MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers for more fun. The BOOM 4 is part of the range of wireless speakers with Bluetooth, providing 45 meters (147 feet) of freedom, so you can walk away and keep the tunes coming. Pairing with other Ultimate Ears speakers makies this Bluetooth speaker louder, creating a surround sound experiencve. Long-press the Magic Button to access your playlists, or set up one-touch playlists on your favorite streaming platforms like Spotify, desertcart Music on Android,* and Apple Music on iOS. As one of the loud speakers Bluetooth wireless families, it offers ultimate sound for those made to wander. Also suitable as a bathroom Bluetooth speaker or for home use, this blue tooth speaker provides versatility and consistently clear sound.

Review: WILL NOT GET BLOWN OUT (will last decades) - Ive used UE Boom products for years now and they’ve never disappointed. Every other speaker brand gets blown out, or isn’t water proof, this is the speaker for the whole family. I love taking a shower with the speaker, it makes it feel like I’m at a concert how loud it is. It’s just as loud as the Mega Boom, I have a very old version of this one, and when I bought this Boom 4, it was a seamless transition. I love how I can bring it in and out the shower to change songs and get it wet without worrying about ruining it. I’ve ruined so many phones and laptops like this over the years until I was fortunate enough to buy this speaker. It is on the pricey side, but it’s so worth it. These speakers are really loud, and I listen to music with tons of base in it, I was afraid the speaker would blow out. My sister got this model I wanna say about 5 years ago and after a month, the speaker started to sound corse like there was sand in it. I was afraid this would happen to this one, but they’ve made significant upgrades. I feel like this speaker is as loud as the old model or the Mega Boom I had if not louder. It’s a lot smaller than the Mega Boom which is nice, I thought it wouldn’t be as loud I’m very pleased. It has a portable design, it’ll fit in your cup holder, if you have big enough pockets it’ll even fit in there. I love this speaker. I bet the smaller version is even just as loud too. You can add a feature where it automatically plays your playlist if you hold down the center button without touching your phone. It only works for SoundCloud and Apple Music at the moment which is a little lame because Spotify for the win, but still cool, I bet they’re working on getting it anyway. If you’re looking for a waterproof durable speaker get this one. I believe the Mega Boom I mentioned is about 10 years old and still works like a charm. The only reason I bought a new one is so I wouldn’t had to share anymore. The color I got is adorable, the speaker is cuter in person. It connects to my phone in a matter of seconds, if you have an Apple device (I don’t know about any other devices) it makes it super easy to turn on and off your Bluetooth with this new update. Eveything is so easy. The play time lasts forever. I primarily use it in the shower, and if I don’t use it as loud, I won’t have to charge it for weeks. If I’m using it in my room for low ambience music or some white noise for my baby sleeping, it’ll last a long time as well. It does not die fast when you listen to loud music, but it speeds up the process. This will turn a week of charge into a couple of days. Either way I love the speaker, it’s amazing. Forgot to mention the new speakers don’t use the terrible android charger anymore that constantly broke inside the speaker. They switched to the type-C charger which makes things so much easier. I can use the charger for my phone, the speaker, and my baby’s sound machine. They’re all in one area, and the type C charges so fast. Just very very convenient. This is the speaker. It’s definitely worth the money and will literally last you decades. The video I attached shows how good it sounds just through my phones speakers, the video keeps glitching because I’m holding my baby lol. UE BOOM ROCKS.
Review: It's a steal for what you get back. - If I'm being totally honest this product to me is therapy on the go. Im diagnosed with a plethora of mental health issues. Music is the best medicine for me. I was skeptical to buy this little bugger, but once I opened the box and hooked it io to my Bluetooth.....imediate zen. I didn't even ha e to read the instructions. I was having a panic attack and in less than a minute this mobile speaker made me feel like I was at a live show just being ok being me. The quality of the sound blew me away. The battery life is wicked loooooong. It was a huge impact tool to bring my anxiety from an 8 down to a 2 after listening to one song through its ease of use. Whoever was involved in development of this lil'speaker. Thank you. I wish everyone had such a powerful sound machine. Its part of my lexicon now like "have tou ever looked into a Wonderboom?" It will calm you the F down in minutes. Trust me, this is a good buy. I just wish I got the blue one because it looks cooler.

## Features

- Portable 360° Sound: The BOOM 4 portable waterproof Bluetooth speaker delivers balanced 360-degree sound with clear audio and bass, so you can enjoy your music in a compact portable design.
- Powered for Adventure: This waterproof portable speaker has a rechargeable battery that stays powered, pumping tunes for 15 hours on a single charge; Charging via USB-C cable (not included).
- A Bluetooth Waterproof Speaker Made for the Outdoors: Rated IP67 waterproof and drop-proof up to 15 feet (1.5 meters), the BOOM 4 floating Bluetooth speaker is virtually indestructible
- PartyUp: 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 (Not compatible with WONDERBOOM and MINIROLL)
- Magic Button: Play, pause, skip, and control music directly from your favorite streaming service; set up one-touch playlists on platforms like Spotify, desertcart Music on Android, or Apple Music on iOS
- Extremely Wireless: With 45 meters (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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CVFLDXKC |
| Additional Features | Dustproof, Lightweight, Portable, Shockproof, Waterproof |
| Antenna Location | For Computers, For Smartphones or Tablets |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 15 hours |
| Battery Capacity | 15 hours |
| Best Sellers Rank | #3,392 in Electronics ( See Top 100 in Electronics ) #77 in Portable Bluetooth Speakers |
| Bluetooth Range | 45 meters |
| Brand | Ultimate Ears |
| Built-In Media | Boom 4 Blue |
| Color | Blue |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet, Television |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | App |
| Controller Type | Button |
| Customer Reviews | 4.3 out of 5 stars 853 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 60 hertz |
| Is Waterproof | True |
| Item Dimensions D x W x H | 4"D x 4"W x 8"H |
| Item Weight | 1.7 pounds |
| Manufacturer | Logitech |
| Maximum Range | 45 meters |
| Model Name | Boom 4 |
| Model Number | 984-001967 |
| Mounting Type | Tabletop Mount |
| Number of Audio Channels | 5.1 |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Processor Count | 1 |
| Series Number | 4 |
| Speaker Maximum Output Power | 10 watts |
| Speaker Size | 4 inches |
| Speaker Type | Outdoor |
| Specific Uses For Product | Gaming, Party, Travel |
| Subwoofer Connectivity Technology | Wireless |
| UPC | 097855197696 |
| 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:** 60 hertz
- **Speaker Maximum Output Power:** 10 watts

## Images

![Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue - Image 1](https://m.media-amazon.com/images/I/81fL2wa0u6L.jpg)
![Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue - Image 2](https://m.media-amazon.com/images/I/81F-Oya5XZL.jpg)
![Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue - Image 3](https://m.media-amazon.com/images/I/81mU8i16dQL.jpg)
![Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue - Image 4](https://m.media-amazon.com/images/I/91ICS9dieBL.jpg)
![Ultimate Ears Boom 4 Portable Bluetooth Speaker, Waterproof - Blue - Image 5](https://m.media-amazon.com/images/I/91s6x3KbX5L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ WILL NOT GET BLOWN OUT (will last decades)
*by S***4 on February 19, 2026*

Ive used UE Boom products for years now and they’ve never disappointed. Every other speaker brand gets blown out, or isn’t water proof, this is the speaker for the whole family. I love taking a shower with the speaker, it makes it feel like I’m at a concert how loud it is. It’s just as loud as the Mega Boom, I have a very old version of this one, and when I bought this Boom 4, it was a seamless transition. I love how I can bring it in and out the shower to change songs and get it wet without worrying about ruining it. I’ve ruined so many phones and laptops like this over the years until I was fortunate enough to buy this speaker. It is on the pricey side, but it’s so worth it. These speakers are really loud, and I listen to music with tons of base in it, I was afraid the speaker would blow out. My sister got this model I wanna say about 5 years ago and after a month, the speaker started to sound corse like there was sand in it. I was afraid this would happen to this one, but they’ve made significant upgrades. I feel like this speaker is as loud as the old model or the Mega Boom I had if not louder. It’s a lot smaller than the Mega Boom which is nice, I thought it wouldn’t be as loud I’m very pleased. It has a portable design, it’ll fit in your cup holder, if you have big enough pockets it’ll even fit in there. I love this speaker. I bet the smaller version is even just as loud too. You can add a feature where it automatically plays your playlist if you hold down the center button without touching your phone. It only works for SoundCloud and Apple Music at the moment which is a little lame because Spotify for the win, but still cool, I bet they’re working on getting it anyway. If you’re looking for a waterproof durable speaker get this one. I believe the Mega Boom I mentioned is about 10 years old and still works like a charm. The only reason I bought a new one is so I wouldn’t had to share anymore. The color I got is adorable, the speaker is cuter in person. It connects to my phone in a matter of seconds, if you have an Apple device (I don’t know about any other devices) it makes it super easy to turn on and off your Bluetooth with this new update. Eveything is so easy. The play time lasts forever. I primarily use it in the shower, and if I don’t use it as loud, I won’t have to charge it for weeks. If I’m using it in my room for low ambience music or some white noise for my baby sleeping, it’ll last a long time as well. It does not die fast when you listen to loud music, but it speeds up the process. This will turn a week of charge into a couple of days. Either way I love the speaker, it’s amazing. Forgot to mention the new speakers don’t use the terrible android charger anymore that constantly broke inside the speaker. They switched to the type-C charger which makes things so much easier. I can use the charger for my phone, the speaker, and my baby’s sound machine. They’re all in one area, and the type C charges so fast. Just very very convenient. This is the speaker. It’s definitely worth the money and will literally last you decades. The video I attached shows how good it sounds just through my phones speakers, the video keeps glitching because I’m holding my baby lol. UE BOOM ROCKS.

### ⭐⭐⭐⭐⭐ It's a steal for what you get back.
*by N***N on September 19, 2026*

If I'm being totally honest this product to me is therapy on the go. Im diagnosed with a plethora of mental health issues. Music is the best medicine for me. I was skeptical to buy this little bugger, but once I opened the box and hooked it io to my Bluetooth.....imediate zen. I didn't even ha e to read the instructions. I was having a panic attack and in less than a minute this mobile speaker made me feel like I was at a live show just being ok being me. The quality of the sound blew me away. The battery life is wicked loooooong. It was a huge impact tool to bring my anxiety from an 8 down to a 2 after listening to one song through its ease of use. Whoever was involved in development of this lil'speaker. Thank you. I wish everyone had such a powerful sound machine. Its part of my lexicon now like "have tou ever looked into a Wonderboom?" It will calm you the F down in minutes. Trust me, this is a good buy. I just wish I got the blue one because it looks cooler.

### ⭐⭐⭐⭐⭐ Awesome quality speaker
*by T***R on September 19, 2026*

Great sound, quality speaker. Good battery life, easy charging. User friendly, highly recommend.

## Frequently Bought Together

- 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 - Blue
- Lebakort Storage Case Compatible with Ultimate Ears UE Boom 4 3 Portable Waterproof Speaker (Blue Case, for Boom 4)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-09-22*