Customer Ratings & Reviews

I previously owned the mega blast, and was hesitant to buy a new one despite the mega blast starting to die on me after a few years of loyal service and excellent jam sessions. I finally pulled the trigger on getting one of these little ones because it’s pool season again, and I wanted to have some jams at the pool. Everybody is blown away by the amount of bass that this thing produces despite it being so small - it’s about the size of a really big Red Bull can, and fairly lightweight that you can throw it on a rope and carabiner and hang it from a bag and still get great jams out of it without feeling the weight drag you down. EASILY worth the money, especially considering how much you’re going to use it on a daily basis or at least for every pool session. Small enough to fit in the center console of my bronco for a chill beach session as well!

The boom 4 is very portable and powerful bluetooth speaker

Excellent music and I like to listen in my Room I Recommend

My old WonderBoom (ball-shaped) speaker died so I didn't do much research and purchased this one. I had trouble with initial pairing/matching, but it is now working fine. I think the sound is decent. Was a bit surprised at the price tag, but so far am happy with it. Not sure how it compares with similar models from JBL. I do appreciate the size/shape. Hoping to get many years out of it like my last UEBoom speaker. There are some features I have NOT played with yet - it comes with an app with pre-set EQ modes like "Bass Boost," "Cramped Space," "Deep Relaxation," or "Podcast/Vocal" to tailor the audio, one-touch playlists, connection multiple speakers, etc. I haven't yet come across the need for the waterproof feature. Price I paid is same as Amazon - but I have Geek Squad/Total Best Buy membership so prefer purchasing from Best Buy.

Battery lasts a long time, the sound is phenomenal, and its narrow design allows for it to take up minimal counterspace while on its charging dock. Using its corresponding app allows it to also work as a, “public address” speaker while music plays on the speaker. Very worth the price!

I really like this speaker. It has a great sound in a small footprint. The battery last long also.

Great sound in this wireless speaker. We were at our community pool and someone had the same Ultimate Ears Boom 4 speaker playing. I Asked her where she bought it and what the name of it was. The next day I went to the Best Buy app and ordered me one. Now I am the talk of the pool with my new Boom 4 waterproof wireless speaker!

I love ultimate ears products. I have almost every speaker they make. The sound quality is amazing. They get wet and easy to connect pack and travel with. My favorite product and Bluetooth speakers.

I upgraded from the Boom 2 and couldn't be any happier. The sound quality, battery life, durability and the addition of USB-C have been great to have. I highly recommend this speaker!

I use this mostly in a moderate sized living room and I enjoy the sound and ease of use. I pair it with either my phone or computer and the connection is seamless

It has great sound quality, the battery life is solid, and I really dig the design

It’s a great speaker. But it doesn’t come with a charger? Seems weird. The video in the description shows it comes with one. When you receive it, there’s nothing inside. Sound is good quality and it fits almost anywhere. I love my BOOM 4. I want the MegaBoom next! Hopefully it comes with a charger lol

This is my fifth time buying this brand and all of them have ceapped out within two years, I have two megablast that are pretty much paper weight, I have three wonderbooms which are great. The higher more expensive ones seems to just not work at all after two years. My latest one the wonderboom 4 just all of a sudden gave out, doesn’t want to charge, doesn’t want to turn the middle button off, pretty much doesn’t want to do anything. I ha e tried this brand over and over giving them the benefit of doubt but I am no longer going to be buying this brand or recommending it to anyone l, I have had nothing but problems with these speakers for the last few years only reason I kept buying was when it does work the sound is amazing, other than that I am pretty much over them and all the issues They have given me.

Great quality, has amazing sound and I love the color and its water proof.

Sleek and the sound is fantastic. I love its portability and design.

Perfcet size for bringing to the beach, park, or outside in the backyard. Perfect sound and easy to setup and use!!

Great sound quality, and it’s very portable! Love the color as well! Lasts quite a while on a single charge and charging doesn’t take too long.

Just what my son needed. Great sound quality and the battery life is good.

Great speaker. Easy to take along in the car, on a walk, etc. sounds great, stays charged and not heavy to lug around. Highly recommend.

My daughter requested this Ultimate Ears Bluetooth speaker because she likes the quality of the sound, it's a good size, waterproof, and comes in fun colors.