Customer Ratings & Reviews

I purchased the speaker on a massive sale and could not be happier with it. It is by far the best single, Bluetooth speaker I have heard yet. The bass is very powerful, but does not distort, and clarity is excellent with none of the fuzziness other Bluetooth speakers sometimes have. I use it in my living room and it has beautiful room filling sound. Connecting to the speaker is simple and quick and I haven't had any reception issues or music cutting out. It's worth the premium price!

I love the sound. I love the bass. Very easy to set up. It can be connected to multiple devices.

This Bluetooth speaker has good Sound and Bass one good thing is you can pair with other speakers.

Very nice looking and pleasant to the touch. The sound itself is quite good, gets very loud. It wasn't quite as clear as I was led to believe by the glowing reviews, even compared to some considerably less expensive speakers I've used, mids a bit overwhelmed by bass. Still a very nice overall speaker at sale price if it fits your space and you don't mind the limited portability.

This Harmon Kardon Bluetooth speaker is awesome. It connects flawlessly to your devices and the sound is crisp and clear. Has a modern look and does not take up much counter space. It has a phone button on it in order to set up your mobile device on it and can hear your caller using this speaker making it a hands off experience. This unit is usually very expensive, but was able to purchase it at a reasonable price at Best Buy!

I was in the market for a portable speaker and listened to this in-store and I was 100% sold.The battery life may not be as long as other portable speakers but the sound is BIG with great lows and range.

I don't write any reviews usually, but this is an exceptional product! First I bought one Onyx4 speaker for $99. It has a great sound, but when I got the second one and paired them together - I was absolutely blown away by sound quality - very clear highs and mids, and great powerful bass. Actually 2 speakers in paired mode sound 10 times better than one speaker! Thank you, Harman Kardon, for this piece of the art.

This speaker is awesome. It has great sound and the best thing is it's battery and portability. I love it.

I was looking for a nice wireless office speaker for a few months, and most I found were over my budget (around $100). I needed it to be portable and have good sound. Found this for $99 bucks here on BestBuy.com. So decided to find some reviews, and stumbled on one from JimsReviewRoom on Youtube. His review sold me on the speaker...especially at the price. I highly recommend this speaker. Great sound and quality.

I love these speakers... Yes, not the bass-thumping of higher priced models, but these produce very good sound quality while having a small footprint and portability... Using the HK Connect I have a single source of music playing throughout the entire house with 10 of these positioned discreetly all over the place. Sounds fantastic as you go from room to room and it just blends all over... Highly recommended!!!

I bought it with the special price, I honestly believe this is an item that every human should buy when it's on sale... The sound is better and richer than the JBL eXtreme (which was my favorite still since it's more outsoorsy) and is also better than the $300 Bose speaker as well NO JOKE!!! we compared the same song on each other inside the store and this Onyx indisputably sounded richer in the bass and all ranges. Truly a masterpiece. Not to mention louder.

This speaker is awesome. I originally heard this in action via a model 1 or 2 through someone else who had one years ago. I was so impressed I never forgot it and when I got a chance to purchase one, this was a must have. I purchased the 4 and wowwwwed my husband when he heard the sound. I would ABSOLUTELY recommend it. It’s the package you’re looking,....power, clarity, ease of use. Purely 2 thumbs up!

We own two of these speakers and I love having them sync'd so we can hear music from room to room. This works great too for our projector and watching outdoor movies. The speakers have a great tone and range of sound as well as good volume. They're super easy to connect to and it's nice being able to just unplug them and move them outside or into the garage when there's work to do.

Light weight.hard to believe,that big sound,comes out of a small speaker.The rear sub gives great bass.

This is by far the best speaker I have ever owned. The lows are full and rich and the speaker can fill a room, no matter the size. The high and mid tones are nice and crisp as well, but this speaker is more for someone looking for ground shaking bass... literally. An added bonus is you can sync numerous speakers (website says 100+) of these speakers to play the same music throughout your home. Love this product, can not recommend this enough!!!

I have the Bose for my kitchen but i put this in my game room and it sounds amazing. IMO it sounds better than the Bose but it is bigger, which you need to consider for where you will place it.

Got this at more than 50% off- sounds great streams my from my phone via Bluetooth - easy to connect.

Very loud and clear. A lot of bass for such a small unit. Convienient with no cord and Bluetooth

Works amazing. Bluetooth , loud. Sounds great. I can play it upstairs and hear it crystal clear downstairs

The sound of this speaker is AWESOME! The item was purchased as a gift for my 15 year old daughter and needless to say SCORE for mom! After she turned it on for the first time, everyone in the house was jealous and it's guaranteed there will be a few more purchases of this speaker in family households down the east coast. Harmon Kardon outdid itself with this speaker. Sound is crisp, clear, and the bass is ridiculous. Awesome speaker...Awesome sound!