Customer Ratings & Reviews

Ultimate Ears Wonderboom 4 just blows me away every time I take it out—it's like having a mini concert in your pocket! The portability is next level; at just 0.9 pounds and super compact, it clips right onto your backpack or fits in a cup holder, perfect for hikes, beach days, or just chilling in the yard. I love how it floats also. Battery lasts forever too—easily 14+ hours on a charge, which is a game-changer for all-day adventures. That said, it's a bummer there's no app support at all; you can't tweak the EQ beyond the basic Outdoor Boost or new Podcast mode, which means you're stuck with the out-of-the-box sound if you want more customization. It's punchy with decent bass for its size, but without app tweaks, it might not hit the sweet spot for audiophiles. Still, for quick, worry-free sound on the go, it's a total winner—highly recommend if you're not chasing fancy controls!

Absolutely love this this lil speaker. Had one for years and someone stole it. Had to repalce it. I would take it everywhere, beach, park,bbqs. Its lightweight and easy to set up. Sounds clear and last clearly the whole day. Just make sure the battery is charged a decent amount if you do plan on using it ALL day. And its waterproof. I wouldnt use any other speaker box.

It’s compact, it has pretty decent sound, and I can take it in the shower rather than taking my phone in. I really like it, and I love the color. It lasted a long time on one charge, which I really like, so overall I am really pleased.

It’s super portable, battery lasts, and it says it’s waterproof. I haven’t tried submersion, but it’s been splashed a little, hahah. At this price point, it sounds great. No regrets.

Wonderboom has roughed it out with me during work. Working long hours outside as a carpenter and also doing landscaping I like to have some music going. The Wonderboom lasts for hours and with it being waterproof you can’t go wrong. It’s a plus if you work manual labor! The sound packs a good punch too!

My second portable speaker and my last. This thing has amazing sound. 12-14 hour battery life, portable and waterproof. Don't know what else I could ask for.

Really love this speaker I purchased this one to compliment the other one i have by itself its an amazing speaker really loud for its size with really good bass and long lasting battery doesn't really take long to charge people always compliment this speaker and can't believe the sound it delivers for its size i most definitely recommend this speaker.

Super happy with a pair of these for the smaller rooms of my condo. Nice sound, which is the main thing. I mostly play popular music, podcasts, and cast Youtube or video streaming. No latency issue. Easy to use and pair. Attractive and easy to move from room to room. Really good battery life.

This speaker is great for on the go and for personal music. Even though it’s small, this speaker can get loud. Sound is very clear, and the optional mode are a great tool, depending on where and what you’re listening to. Battery is on power to what is advertised and maybe more.

Love the size and portability. Sound is good and no problems with battery life.

I love this speaker. I like that is produces a huge amount of sound with clarity and lasts a long time. The best part ia that it's compact and takes up minimal space, which also allows you to travel various places with it,i.e., work, outdoors, social gatherings, etc. Another great feature is when in large open spaces you can utilize the outdoor amplified booster fearure. I couldn’t be more happy with my purchase!!

The sound is good given the size and is surprisingly loud. The battery life, usb c connector, ease of use, and the water resistance with the ability to float make this a great choice. I am happy with this purchase.

Very good quality and the sound is amazing! There is also an outdoor setting for optimal sound without the bass that sounds amazing as well!! You can also sync 2 together for playing on dual speakers!!! Very great for the price! I use it everyday, on full blast most days and I get through a full work day without having to charge. It's also waterproof for outdoor adventures etc and won't break if you drop it! Very great product that they've almost perfected this time around especially with the USB C port !!! I HIGHLY recommend!!!

Pretty decent speaker! I was torn between this one and the next step up but that was twice the money. Glad I held out. I work in a loud machine shop and this little guy has no problem being heard. Plus it's resistant to basically everything. I can run it for 3 days before charging too. Good speaker!

The speaker has good base. It loud and water proof.

We looked at several BT speakers under $120. Wonderboom 4 was the best of the lot for excellent sound, easy user interface and setup, easy to parallel units or go stereo for even better sound, rugged and waterproof for beach or boat. Others may have had a little better sound, but they were not suitable for outdoors or boat, nor had simple interface for setup and sound quality. We bought two of these - use with iPhone, and MacBook. Love them.

Already owned a single Wonderboom, when the new version went on sale, bought a pair so sync up for stereo. Sound quality is great, these are even louder than the earlier version. Good bass considering the size, long battery life, easy to operate. Highly recommended

Very happy with the purchase. Don't let this small speaker fool you- it's powerful, sounds great, and the fact that it's water and dustproof just makes it so versatile. The Bluetooth connectivity is easy and quick. My only minor complaint is the price being higher than other options, but in my opinion, it's well worth it.

It has good sound for the price point. It connecta easily and has long bluetooth connectovoty range. I have other Ultimate Ears speakers that are larger and at a much higher price point and there is definitely a difference in sound quality. This speaker is a great option for projecting video sound when doing group training. I do not recommend it for listening to orchestral music.

Boom speaker best portable speaker I can take it anywhere and where I want fits perfectly in the palm of your hand speaker features good battery life works amazing indoors and outdoors performs better than more expensive speakers