here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
Best Sellers
Hot Seller- $149.99
Hot Seller- $149.99
- + FREE SHIPPING
- $165.09
- + FREE SHIPPING
Ultimate Ears BOOM 4 Wireless Bluetooth Speaker - Raspberry Red
- The BOOM 4 portable waterproof Bluetooth speaker delivers rich, 360-degree sound and deep, accurate bass, all carefully balanced so you can hear every note.
- This waterproof portable speaker has a rechargeable battery that stays powered, pumping tunes for 15 hours on a single charge.
- Rated IPX7 waterproof and drop-proof up to 15 feet (1.5 meters), the BOOM 4 floating Bluetooth speaker is virtually indestructible.
- 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.
- Play, pause, skip, and control music directly from your favorite streaming service; set up one-touch playlists on platforms like Spotify, Amazon Music on Android, or Apple Music on iOS.
- The plastic parts in the Ultimate Ears BOOM 4 wireless Bluetooth speaker include a minimum of 52% post-consumer recycled plastic by weight.
+
+
Overview
Specs
Reviews
See all Q & A 
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
Super portable and extremely durable, the red-colored Ultimate Ears BOOM 4 Wireless Bluetooth Speaker from Logitech is ready to deliver balanced 360? audio and deep bass by the pool or anywhere you're hanging out. By the pool, you don't have to worry as the BOOM 4 is waterproof, can float, and even be submerged in up to 3.3 ' of water for up to 30 minutes.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 1 year
- Limited Warranty period (labor): 1 year
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-646-454-3200
- Support Website
- View other products from Logitech
LOADING...
LOADING...
The Ultimate Ears BOOM 4 is a portable Bluetooth speaker with 360-degree sound, deep bass, and up to 15 hours of battery life, suited to listeners who want music for home hangouts or outings without relying on a power outlet.
Recommended For
- People bringing music to poolside, beach, or campsite gatherings who want a compact speaker that can handle water and outdoor use without needing careful placement for everyone to hear it.
- Campers and people spending long stretches outdoors who want a portable speaker for nearby listening, with 360-degree sound and battery life rated for up to 15 hours.
- People listening to podcasts or spoken audio while moving around a room, patio, or campsite; reviewers found voices clear and the cylindrical design keeps sound consistent from different listening angles.
- Owners of compatible Ultimate Ears speakers who want to link multiple speakers through the BOOM app to spread music across a gathering or outdoor space.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Portable Bluetooth listening at parties, while traveling, and outdoors, with playback from compatible phones, tablets, computers, and other Bluetooth devices |
| Audio And Drivers | 2.1-channel stereo output with two 1.57-inch active drivers and two 1.81 × 2.57-inch passive radiators; maximum sound level of 85 dBC and stated output power of 10 W |
| Wireless Connectivity And Controls | Bluetooth audio playback with a range of up to 147 feet (45 meters); compatible with devices supporting A2DP and controllable through an app |
| Battery And Power | Rechargeable lithium-ion battery rated for up to 15 hours of playback and 2,100 mAh; actual runtime varies with use, settings, and conditions |
| Durability And Use | Waterproof, dustproof, and shockproof for outdoor use |
| Physical Specifications | Red cylindrical speaker measuring 7.3 inches high by 2.9 inches wide and weighing 620 g |
| Audio Features | Includes four preset EQ modes |
| Compatibility And Mounting | Designed for tabletop placement and compatible with smartphones, tablets, laptops, desktop computers, and televisions |
| Package Contents | BOOM 4 speaker, attached bungee, and printed Quick Start Guide |
| Model Identifiers | Ultimate Ears BOOM 4, model and part number 984-002004 |