Ultimate EarsBoom 4 Portable Waterproof Bluetooth Speaker with 360-Degree Immersive Sound, Outdoor Floating Speaker, 15-Hour Battery, 147ft Range - Black

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.I’ve even taken it on multiple inner tube float trips (in a ziplock bag). I’m the most popular guy on the river. I’ve 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.It’s incredible. The sound is amazing!If this thing holds up like the original, I’ll probably never need another portable speaker.Except, I’m probably going to buy 2 more to have surround sound stereo wherever I go and whenever I want it.Can’t say enough good things about this company and their products.Buy one. You’ll love it.

Excellent sound quality, battery last longer than many other brands I've used and it's pretty resistant.

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.

The speaker works great. I love the smaller size especially for traveling. The color also pops. Great sound quality.

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.

I love the color of this blue one! Music is amazing out of this speaker. I like bass and it has plenty! I haven’t tried using it with an audiobook so I don’t 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 I’ve not even turned it up 75% yet.

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 doesn’t charge while plugged into a usb automobile cigarette lighter.I bought the mega boom 3, it was certified refurbished, I wasn’t 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 it’s 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.

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.