---
product_id: 637998636
title: "Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue"
brand: "ultimate ears"
price: "1369 Lei"
currency: RON
in_stock: true
category: "Ultimate Ears"
url: https://www.desertcart.ro/products/637998636-ultimate-ears-boom-4-portable-waterproof-bluetooth-speaker-with-balanced
store_origin: RO
region: Romania
---

# IP67 waterproof & floatable 360° balanced sound 15-hour battery life Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue

**Brand:** ultimate ears
**Price:** 1369 Lei
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate every adventure with sound that never quits

## Quick Answers

- **What is this?** Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue by ultimate ears
- **How much does it cost?** 1369 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-waterproof-bluetooth-speaker-with-balanced)

## 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

- • **Immersive 360° Sound:** Experience crystal-clear audio and deep bass from every angle—your soundtrack, uninterrupted.
- • **Instant Music Control:** Magic Button lets you play, pause, skip, and launch playlists with a single tap—streamlined for your busy lifestyle.
- • **Seamless PartyUp Sync:** Link multiple Ultimate Ears speakers for an epic surround sound party—because one just isn’t enough.
- • **Adventure-Ready Durability:** IP67 waterproof, dustproof, and drop-proof up to 15 feet—built to survive your wildest journeys.
- • **Unmatched Wireless Freedom:** Roam up to 147 feet away with stable Bluetooth connectivity—music that moves with you.

## Overview

The Ultimate Ears BOOM 4 is a portable, IP67-rated waterproof Bluetooth speaker delivering balanced 360-degree sound with clear audio and rich bass. Featuring a 15-hour rechargeable battery, 147-foot wireless range, and rugged durability including drop-proof design, it’s engineered for outdoor enthusiasts and everyday use. With PartyUp technology, it pairs with other Ultimate Ears speakers for immersive surround sound, while the Magic Button offers one-touch control of your favorite streaming playlists. 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.

## 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 | #2,660 in Electronics ( See Top 100 in Electronics ) #87 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 813 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 60 Hz |
| Is Waterproof | True |
| Item Dimensions D x W x H | 4"D x 4"W x 8"H |
| MP3 player | No |
| 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 | 1.0 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 Hz
- **Speaker Maximum Output Power:** 10 Watts

## Images

![Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue - Image 1](https://m.media-amazon.com/images/I/81fL2wa0u6L.jpg)
![Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue - Image 2](https://m.media-amazon.com/images/I/81F-Oya5XZL.jpg)
![Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue - Image 3](https://m.media-amazon.com/images/I/81mU8i16dQL.jpg)
![Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue - Image 4](https://m.media-amazon.com/images/I/91ICS9dieBL.jpg)
![Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with Balanced 360-Degree Sound with Clear Audio and Bass, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Blue - Image 5](https://m.media-amazon.com/images/I/91s6x3KbX5L.jpg)

## Available Options

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

## 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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**Shop now:** [https://www.desertcart.ro/products/637998636-ultimate-ears-boom-4-portable-waterproof-bluetooth-speaker-with-balanced](https://www.desertcart.ro/products/637998636-ultimate-ears-boom-4-portable-waterproof-bluetooth-speaker-with-balanced)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-07-13*