





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 5 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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Original price was: $149.99.$99.99Current price is: $99.99.

zo –
Clear, powerful sound. Fun design and easy to use. Extra app features.
As a speaker, the Boom 4 is great, nice clear, well balanced sound with decent bass. Obviously for something this size the bass is not particularly powerful but it is still adequate.I particularly like the design, the outer surface has a nice almost clothlike texture and the big bold volume buttons are fun and functional.The app adds some nice extra features like EQ and a very convenient ability to remotely turn the Boom 4 on or off. The remote power option is really nice but it doesn’t always work as smoothly as I would like. I often have to try to connect with the Boom 4 in my phone settings before trying to power it on remotely but it does eventually work. Battery life is solid too, standby mode barely drains it at all.Other than that, the Boom 4 is a very enjoyable speaker with a lot of power for its size and nice, clear sound quality.
Rachael –
Awesome Speaker!
We have several of these and I bought this one to add to our collection. They all link together and are truly great sound! We use them both indoors and out and in all weather. Good battery life, great quality! We love them!
Rachael J. –
Great sound
This has been a very good speaker. We love the sound it produces. The volume is great. Fantastic how you can connect multiple speakers together to create surround sound in a room. The speakers connect in good unison.
Gym girl –
Great sound.
Love the UE Boom. Portable. Get sound easy to use
Stephen Jones –
The sound knows no bounds
Incredible sound. Pairs easily.
Lukas Woodall –
Completely Dissatisfied….
This is by far honestly probably one of the worst speakers, and worst investment into a speaker, that I’ve ever made. I understand if maybe I got a faulty speaker, maybe the internals are just not properly set up and I just can’t see it. I will say though, total waste of money. I spent $150 on a “high quality” speaker, that’s got choppy connection to the device playing music, and it has YET to last me longer than 3 1/2 hours even being charged for 8-10 hours at a time. Wouldn’t recommend to anybody honestly, again, unless my speaker is just malfunctioning. I do not like leaving bad reviews, I love to support the companies I support by buying their product, I’m just absolutely as dissatisfied as I could be in full honesty. Expected so much more. Not sure I trust to buy anything from this company at this point. Used to be good, everything collectively seems to be going downhill.
WLM360 –
Quality, not very effective equalizer (mixer) in the App.
I bought one, liked it, then bought another for true stereo sound. Good sound (for me it is fine, but maybe not the very best). I am satisfied and enjoy them. Can move them around, and strong enough for filling our apartment living room. 4 stars though – when using two it can be finiky to get them both operating together. A bit of playing around that prevents me from freely using them as I don’t have a lot of patience for technology. But the do connect. Also, they have an APP where you can adjust the sound (mixer for bass, treble, etc.) but not nearly as effective as I would like. But I am happy with them as they are. If you really want to equalize sound and are particular, you might want to spend more money. It is minimalist – you have to know where the control buttons are and how to use them. Could have a better instruction manual for non-tech buffs like me.
Jamie –
Great buy
Great sound and battery last forever. I would recommend this speaker to anyone.
Jorge Lara –
Me gustó mucho, es sencilla de utilizar, sonido aceptable para la fiesta, no esperes sonido Hi end.
J. King –
I have used a JBL Flip 5 for a few years and am still happy with it. I wanted another bluetooth speaker to use in my workshop. The sound samples from Flip 6 were good in the bass but sounded too hot in the treble for me. The Wonderboom 4 also sounds like the high end has too much sizzle for my taste. The Flip 7 sounds a lot better but is $50 more expensive than the current Boom 4 at $139 CAD.Note:The Boom 4 price has moved back up to $199. Flip 7 might be the better deal at this price point.Boom 4 seems to really shine in the clear and dynamic presentation of a natural midrange. The Boom 4 low end rolls off a bit more than the Flip 5 but retains a punchy presence. The Boom 4 really outshines the Flip 5 in its clarity and dynamics. This little speaker seems very well suited for my listening tastes of classical, jazz and other laid back styles. The UE app has battery indicator, a nice remote power on feature and a simplified EQ adjustment. It can also control playlists from Apple and apparently some others.This speaker will please people with similar tastes but probably not satisfy younger beach party listeners whose contemporary playlists appreciate the boosted bass and treble frequencies of other designs.
Roger C. –
Fonctionne à merveille! Ce n’est pas notre premier achat de cet article. Nous les connectons en série pour obtenir un son parfait et uniforme dans le jardin, dans les salles de réception, dans la maison. Le son est de qualité, facile à connecter et à programmer sur le téléphone, la tablette ou le système de son. Offre une belle acoustique.
Matt –
Great bass, connects very easily n long lasting battery oddities
Needed to return as the items on top need to be perfectly balanced or the product tilts and doesn’t turn. –
Easy to use. Good sound.