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, “Oh. We’re doing this now.”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 doesn’t 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 it’s going to start paying rent.

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!

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!

The Ultimate Ears Wonderboom 4 is a compact bluetooth speaker you can fit in the palm of your hand, but don't let its size fool you -- this thing pumps out loud, clear 360° sound with satisfyingly thumpy bass and greats mids and highs. It's sturdy, waterproof, has a forgivingly long wireless range, and it even floats in water, making it perfect for any situation from camping trips to pool parties, or just casual listening. I like that Ultimate Ears chose a simplistic look with bold colors for these speakers, and the silicone base helps ensure that they stay put. My only gripe is that the Outdoor and Podcast EQs kind of sacrifice some clarity to push the volume in their respective directions, but the standard EQ is so rich and the speaker is so outspoken that either problem these modes attempt to solve are really non-issues, and the fact you can pair up two of these speakers for full two-channel stereo is a big plus. In addition, the regular sound signature is so clear that you can crank the volume with no noticeable distortion. I also wish you could skip back a track with the onboard controls, but doing it on your device isn't that much of a hassle. For this price range and size, I'd say the Wonderboom 4 should be your first choice for a portable bluetooth speaker.

Good value, great to be able to use through Bluetooth.

Best investment ever. Loud and waterproof

Bought my first Wonderboom 4 a week earlier - I was shocked such a small speaker could produce such levels of volume incl deep bass - Hats off to Logitech :0 The waterproof aspect pushed me over the edge to buy one. Turns out It's a great coffee table speaker - and packs an impressive sound footprint. The size makes it easy to place locally for any sitting-reclining situation - allows keeping the sound levels lower so that you impact others less - and yet get great bass performance. Alternately you could crank it up and be amazed or take it outside and adjust one of the 3 EQ settings to "Outdoor LOUD mode". Although default mode is better for bass. After a week of owning one I "had" to order another to get the full stereo support. It was totally worth it, and would recommend these speakers to anyone looking for a super big sound in a tiny package.

Awesome little speaker. Great sound, easy pairing. Little loop great for hanging on neabry coat hooks when rocking out on cleaning day

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.