Customer Ratings & Reviews

I am a sound junkie for sure and this is hands-down one of the best Bluetooth speakers you can get for the price. Paid 125$ for it with the coupon, don't think that price is beatable anywhere else. Also, when compared with Bose, surprisingly this speaker is superior

The quality of sound is crisp and clear, and there are no side noises present The waterproofing is a good thing to have, especially if you will be walking in the rain The portability of the speaker is very good

I really like the sound of harman/kardon studio4 I absolutely recommend this product!!!

This is an absolutely fantastic bluetooth speaker. This thing makes some amazing noise!

Cool Audio Device. Loud Voice. We love the Harmon Kardon Onyx wireless speaker system.

The sound that this speaker produces is much better than I expected. It sounds amazing!

4.5 stars. Little large but sounds amazing!! Wish for nothing else but maybe a case...

This speaker blows peoples minds, the fact that it can actually produce a solid amount of bass is incredible. Plus it’s portable and pairs with a second speaker of the same kind, when the two come together it rivals having an actual speaker system.

I certainly would have never paid full price for this speaker. But I purchased on black Friday and I'm very happy with it. Sound is clear and sharp and bass is outstanding! I'll have to wait for black Friday next year so I can get a couple more!!

I always expect great sound, but this is unreal!! Amazing sound from a small package!

The bomb, this speaker is the Real deal it blows away anything I’ve ever seen awesome

I have the first series Harman Kardon and it sitll works great. I just purchased 2 more series 4 Harman Kardon speakers because they were on sale for over half the price to give to my sons so that i can keep my own. I opened one out of curiosity just to see whats the big difference and the biggest difference is the volume. The series 4 does not get as loud as the first series but they still sound great.

This was bought on sale for a Christmas gift, and she really liked it. Nice upgrade

One of the nicest portable great sounding speaker of it's class! It's a must have!

This little buddy is awesome for any occasion... late nights with the wife or even up studying while premium jazz !!!! And the powerful bass it packs shuts down any other ones down and for the price , ha can you say DEAL!!!!

I love this speaker. I first saw it at a friend's house and I had to have it. For it to be so small, it blasts music throughout the entire house. It can be heard over your party guests and the sound quality is great! Definitely one of my favorite purchases!

Love it. The sound for a single speaker it’s amazing. Should have bought a couple.

Speaker exceeded all my expectations and then some. When plugged in to the power adapter the speaker sounds great and when power is removed and running on the battery. Was worried about losing quality when disconnected, but was no problem for the speaker.

Harman Kardon never disappoints. I picked this over Bose and I am glad I made the decision. Cannot beat this speaker at this price or even double of what it costs. Get one for yourself, there are good deals around often at BB.

Sound is amazing with solid highs and lows. Can't beat $149 on sale...bought 2!!!