Customer Ratings & Reviews

Great range of sound and produces sound that can carry a good distance. Was working outside and didn't realize how far the sound travels from this speaker.

The quality, complete sound that this Harman/kardon puts out is hands-down the best I have found. No one would EVER be disappointed with this purchase!’

sound quality, hk+ features rocks my house. just little diffiicult to use hk+

I've tried and heard many portable bluetooth speakers, but none come close to this one. While it isn't the most portable one on the market, it gives the best sound experience i've heard from a speaker I can carry around with me. Battery life is excellent, bluetooth pairing process is always quick and easy. Would recommend this to any true music lover.

Good stuff Sounds good Easy to use. Gets fairly loud

This is my third Bluetooth speaker and I must say, I’m impressed. It has killer sound and good bass, thanks to the passive radiator on the back. This by far is my fav out of the three I own( the other two being a Bose and a Sony) and this thing has the ability to link up to 100 other Onyx speakers to it. I love this thing.

I recently purchased this speaker, and it is a great product. The bass on this speaker is BOOMING! I highly recommend this product, top of the line!

I love the way these sound and the battery lasts as promised. The App doesn't work worth a crap on party mode, but they both have great connectivity via bluetooth individually!

Quality sound. Lightweight. Easy to trasport to any room or outdoors.

Great sound and good battery life. Its so portable. No Wires

I love this speaker! it sounds great and is easy to use and connect I don’t really like using the phone option through the speaker it’s a little hard communicate if you move to far away from it, but overall the actual quality of the speaker is a plus I would recommend

This is the little brother of the original Onyx and, although it's not as loud, it sounds amazing and the bass is to die for. Pnly issue was the rubber like membrane on the rear of it ripped and caused it to sound pretty bad. I taped it up though and it sounds just as good as when I bought it. Minor Details.

I love this speaker. I previously had the original Onyx Studio so I was excited to see the improvements with this one. Sound quality is crisper with more high end than my previous speaker. Bass is excellent. If you live in an apartment like me your neighbors will definitely hate you. The only reason I gave this speaker 4 stars is because it has relatively low connection range. I could be anywhere in my house on my old speaker but this one starts to lose connection after you go through a wall. Not terrible though. I would definitely buy another and I may at some point bacuase you can link them together.

Great sound easy to use. Light weight & very portable

I own both the Bose Soundlink Bluetooth speaker and the Onyx 4. The Onyx 4 far exceeds the sound quality of the Bose speaker. Money well spent!

The harman/kardon - Onyx Studio 4 Portable Bluetooth Speaker is the best room filling speaker I have ever owned, great bass and extreme highs.

I used for like 3 hours continious at a low volume and high volume but it keep turning off after 2 hours at 3 it died thats the only con but i love the sound i wish the battery life be better but the sound its great.

I love it it’s loud battery last long very good sound

Portability, sound quality and the sale price could NOT be beat.

Great loud sound quality...portable, well worth the price