Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range – Black
€146
Price: $145.99
(as of Aug 02, 2025 15:55:09 UTC – Details)
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, Amazon 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.
Party Up: Use PartyUp on the Ultimate Ears Boom app to pair several BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM portable Bluetooth speakers to create a surround sound experience with outdoor speakers
Ultimate Sound: The BOOM 4 portable waterproof wireless speaker delivers rich, 360-degree sound and deep, accurate bass, all carefully balanced so you can hear every note when using it as a outdoor Bluetooth speaker
Magic Button: 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 to use with this Bluetooth Waterproof Speaker
A Bluetooth Waterproof Speaker Made for the Outdoors: Rated IPX7 waterproof and drop-proof up to 15 feet (1.5 meters), the BOOM 4 floating portable speakers are virtually indestructible
Powered for Adventure: This waterproof Bluetooth portable speaker has a rechargeable battery that stays powered, pumping tunes for 15 hours on a single charge
13 reviews for Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range – Black
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Matt Hesser –
UE Boom, best portable speakers ever.
Ultimate Ears portable speakers are the best on the market.My original one from 10 years ago still works perfectly, sounds amazing, and the battery still powers the thing for like 8 to 10 hours on a full charge. I use it 2-3 times a week for many hours at a time.Iâve even taken it on multiple inner tube float trips (in a ziplock bag). Iâm the most popular guy on the river. Iâve gotten enough free beer to pay for the damn thing.I clean it a few times a year with a damp rag and a shop vac and it still looks brand new, except for some minor polishing on the rubber over power button.I bought the UE Boom 4 to pair with the old one for stereo sound.Itâs incredible. The sound is amazing!If this thing holds up like the original, Iâll probably never need another portable speaker.Except, Iâm probably going to buy 2 more to have surround sound stereo wherever I go and whenever I want it.Canât say enough good things about this company and their products.Buy one. Youâll love it.
Amazon Customer –
The best without doubts
Excellent sound quality, battery last longer than many other brands I’ve used and it’s pretty resistant.
Great looking sandals. –
Great speaker. Portable and sand and waterproof
Purchased for Father’s Day. My dad loved it. It provides decent volume for its size and crisp, high quality sound. The only thing to note is that it comes with charging cable but not box to connect to outlet.
TNT –
Great speaker
The speaker works great. I love the smaller size especially for traveling. The color also pops. Great sound quality.
DragnTamr –
BEST IN THE PRICE RANGE
I have this speaker hanging on my wheelchair. If I must drive a wheelchair,I want good music. Also,it’s another way to let people in cars know that I’m nearby.I wish the volume was easier to adjust. I also wish I could skip forward and back. But the sound is pretty good. It has stood up to getting wet and being dropped.Also I charge it with a fast charger. Blew 2 JBL’s that way. This one seems to handle it a bit better.
Gmram –
Sound is amazing!
I love the color of this blue one! Music is amazing out of this speaker. I like bass and it has plenty! I havenât tried using it with an audiobook so I donât know if the base will be too much in that case but it freaking rocks when jamming to your favorite tunes. The sound is crisp and it will get quite loud and Iâve not even turned it up 75% yet.
Chris Ligi –
Junk
The sound quality is ok, because it is not very loud. At full volume, the battery will be completely dead in 4 hours. At 3/4 volume it will be dead in 5 hours. It doesnât charge while plugged into a usb automobile cigarette lighter.I bought the mega boom 3, it was certified refurbished, I wasnât paying attention, a co worker sent me the link, 3 songs , the speaker was rattling, and by the time I got home from work, it was filled with water.I am a city letter carrier in Vegas, I am outside at least 7 hours a day, and just from leaving a cooling towel on the already rattling speaker, it managed to fill this waterproof speaker with a cup of water, and it never worked again.So whether itâs new or refurbished, I can honestly say that Ultimate Ears Boom4 and mega boom 3 are crap.I had a $28 dollar JBL, that was as loud, and took 2years to blow out the speaker.I am assuming the megaboom4 is no better.
P. Beauvais –
Love this speaker!!
I love! love! love! love! this speaker.I already have a UE speaker and a Bose..I chose to get another UE .The sound is very clear and is surprising how loud it is.
Jorge Lara –
Me gustó mucho, es sencilla de utilizar, sonido aceptable para la fiesta, no esperes sonido Hi end.
Jean Anonsen –
Excellent sound. Easy to operate. Worth every dollar. I would recommend this product.
Amazon Customer –
Maybe not the cheapest speaker on the market, but the sound is great and the extra is worth the it. Long lasting battery too
Patrick –
Awesome speaker, easy to use. I have the older version as well and have been using it for years and it works great still. Use it in my dusty garage no issues.
apeel –
I bought this speaker for my work Iâd say it was worth it honestly it produces good sound at medium and high volume