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๐ Turn heads, not just volumeโsound that follows your every move!
The Ultimate Ears WONDERBOOM 4 is a compact yet powerful portable Bluetooth speaker delivering immersive 360-degree sound with deep bass. Engineered for durability and adventure, it boasts an IP67 rating for waterproof, dustproof, and floatable use, making it ideal for any environment. With up to 14 hours of battery life and a 131-foot wireless range, it ensures uninterrupted music wherever you go. Its eco-conscious design incorporates recycled materials, appealing to the modern, responsible consumer.














| ASIN | B0BRXJ9WTD |
| Additional Features | Dustproof, Lightweight, Portable, Shockproof, Waterproof |
| Age Range Description | Teen and Adult |
| Antenna Location | For Computers, For Smartphones or Tablets |
| Audio Driver Size | 40 Millimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 14 Hours |
| Battery Capacity | 14 Milliamp Hours |
| Best Sellers Rank | #24 in Portable Bluetooth Speakers #316 in MP3 & MP4 Player Accessories |
| Bluetooth Range | 40 Meters |
| Brand | Ultimate Ears |
| Built-In Media | Wonderboom 4 Black |
| Color | Black |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet, Television |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | Touch |
| Controller Type | Battery Powered |
| Customer Reviews | 4.5 out of 5 stars 2,271 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 75 Hz |
| Global Trade Identification Number | 00097855189943 |
| Is Waterproof | True |
| Item Dimensions D x W x H | 4"D x 4"W x 8"H |
| Item Weight | 1.2 Pounds |
| MP3 player | No |
| Manufacturer | Logitech |
| Maximum Range | 131 Feet |
| Model Name | Wonderboom 4 |
| Model Number | 984-001876 |
| Mounting Type | Freestanding |
| Number Of Circuits | 1 |
| Number of Audio Channels | 4 2 |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Series Number | 4 |
| Speaker Maximum Output Power | 10 Watts |
| Speaker Size | 40 Millimeters |
| Speaker Type | Outdoor |
| Specific Uses For Product | Gaming, Party, Travel |
| Subwoofer Connectivity Technology | Wireless |
| Tweeter Diameter | 0.75 Inches |
| UPC | 097855189943 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year Limited Hardware Warranty |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |
K**S
Great little portable speaker
It's easy to pack around and has pretty good sound for such a little guy. Primary uses are music and audiobooks and the sound quality good enough that I'm satisfied. It's not Bose, but it sure ain't bad. I use it in the shop, out by the pool and when I'm gardening. Outdoors the sound travels a bit better if there is a wall or something solid behind the speaker. The loop makes it easy to carry or hang up and the 360โฐ sound means less fussing around with location and direction. Connected to my Android, playing on Spotify, I can crank it all the way up with no distortion or crackling. But, I only did that this one time, so I could note it in the review. It's pretty freaking loud. It's solid with a rubber cap on both the top and bottom. In case of a drop, those could be lifesavers. I've never tossed it in the water, so cannot attest to it's water resistance. It connects quickly and easily to any Bluetooth device and the buttons on top provide easy access to pairing, pause and power. It will power down if left unused for a few minutes to preserve the battery. That's a nice function. I'm not wild about the HUGE volume controls on the front. I think they're ugly and detract greatly from the overall appearance of the speaker. Overall, good value for the money.
D**Y
Audio Perfection
These speakers are friggin awesome. Got one for each of my parents for their birthdays this year. The audio is crystal clear and it also gets very loud for its size without compromising the audio quality. Great for both music and podcasts etc. Also love that you can attach a carabineer to the speaker so you can hook it onto your pants or backpack etc and have the speaker effortlessly follow you around. The different settings/features are also really cool and handy. Would definitely recommend this product and honestly any product from the Ultimate Ears speaker line as in my personal opinion this line of speakers is the best line of portable speakers I know of or have ever heard. They're priced well too. I mean they aren't super cheap but they aren't overly expensive either, it's kinda right in that sweet spot. If you've got the money and you're looking for a portable speaker, look no further than this line because the sound quality and loudness (without distortion) you really won't find anywhere else especially for these prices. I know I'm starting to sound like a UE shill at this point lol but honestly I just really do love and admire their speakers and don't think they get the credit they deserve. Anyway hope this helps!
S**A
Grate sounds, stylish, and compact
I really like the sound quality, the stylish design, and how compact it is. The speaker is easy to carry and perfect for everyday use.
1**1
This Speaker Is Possessed by a Much Larger, Angrier Speaker
The Ultimate Ears WONDERBOOM 4 is built like a friendly little bean and sounds like it does CrossFit and drinks black coffee for fun. I turned it on and my house said, โOh. Weโre doing this now.โ The bass showed up uninvited and started rearranging the furniture emotionally. The 360-degree sound is real. I walked in a circle around it like an idiot and the music followed me like a curse. I put it in the shower. Loud. I put it by the pool. Louder. I dropped it in the pool. It floated. Still yelling. I walked away from my phone. Then I walked farther. Then I forgot where my phone was. Music never stopped. This speaker is loyal to a fault and clearly doesnโt respect personal space. Battery lasts forever. Pairing takes half a second. Survives water, dust, and my playlist decisions. Five stars. If this thing gets any louder itโs going to start paying rent.
V**K
EACH AND EVERY PENNY I SPENT WORTH IT.
I've been a die-hard fan of JBL and Sony speakers for ages, but the WONDERBOOM 4 totally blew me away! The sound quality is crystal clear - I mean, you can hear every single little and small beat! It's crazy how this tiny speaker packs such a punch, it's extremely loud and the battery life is on point. Super impressed and happy with my purchase! If you're looking for a budget-friendly outdoor Bluetooth speaker, look no further. Trust me, you won't regret it!
J**.
GREAT BUT BATTERY RECHARGING IS RIDICULOUS
Overall this thing is super. Great sound, easy to pair & use, tremendous volume & decent battery life. The one unbelievable idiotic feature is battery charging. There's no light or sound to tell you ACCURATELY how full the battery currently is. If you press a button it will say "Normal Battery Level Enjoy The Music" when the stupid thing is somewhere between 36% & 100%. Are you kidding me? 36% is barely 1/3 full & there's nothing to indicate if it's actually 40%, 57%, 84% or 100%. What kind of engineer came up with this & how did it possibly get all the way into production with no one saying, "this is the dumbest thing we've ever made". I had a rechargeable speaker for my 2nd Gen iPod in 2002 with 4 little red lights, 1 light meant 25% charged, 2 lights 50% & so on. Simple, clear & easy, didn't need to talk to tell me absolutely nothing. So now 24 years later & these rocket surgeons can't pull this off with all the advancements in tech over the last 2 decades?
D**E
Best around for price! This is our 2nd one!!!
Oh emโ Gee surround sound little boogers! Awesome sound either way great clarity and base. Glad it waterproofed and able to use outside while gardening or bbqing! Connections easily via usb from my phone.
J**E
Awesome Quailty
Ultimate Ears is all I buy for speakers. They are so good. When I would take mine to the hospital to watch TV everyone would come in and ask me where did you get that speaker bc it sounds so good. There are several nurses who told me they had went and bought one and even two. The sound is fantastic. The battery lasts a long time. My speaker I have had it for 10 years and it still going strong. You want the best sounding speaker without paying 100's of dollars this is the one to get. Also there was one time I had to exchange it bc the sound wasn't good but it was just that one speaker all the other ones I bought have been awesome
A**H
Loud and waterproof
Best investment ever. Loud and waterproof
B**E
The best portable speaker you can find!
Great portable speaker ! So far, it has surpassed all the other ones I've tried. Very good sound with good bass for it's compact size. It's also waterproof and falls proof, and it floats, which is great. It seems very well made and it looks good too! Definitely my favorite speaker, I would recommend and I liked it so much I bought a second one to pair with the first one I bought. You want a solid speaker with great sound, that you can bring anywhere with you, this is it! FYI it's been a year that I bought the first one and I use it regularly (in the shower, the car, doing the dishes...) and it still looks brand new and performs as well as day 1!
A**R
Result in Sound
Good and handy . To enjoy sound or hear vocal sound in small group or for hearing music during study or travel . Can be hidden well with its small size.
J**S
Small but mighty and at a reasonable price point
I love this speaker! Small size makes it super portable without compromising sound quality. The added bass you get by pressing g the button at the bottom gives you great sound when watching movies. Very easy to use and set up! Lasts quite a while on a full charge! I already had one for my classroom and this is my second one for home. Definitely recommend. I bought a case for it afterwards for travelling.
A**R
Decent sound
Brilliant. easy set up good sound.
Trustpilot
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