SaveAt a glance
- What it is
- A portable stereo Bluetooth speaker with self-tuning sound
- Price
- Harman Kardon lists it at $499.95
- Play time
- Up to 8 hours (brand)
Why it belongs in the living room
Some speakers hide in a corner. This one likes to be seen.
The Harman Kardon Onyx Studio 8 is a round, fabric-wrapped stereo speaker with a sleek aluminum handle that also doubles as a sturdy base. Carry it from the kitchen to the patio, set it down, and it blends in like a piece of furniture.
Harman Kardon rates it at 50W RMS, with a 120mm woofer and dual 20mm tweeters for room-filling sound that still feels clear for calls.
The smart little touches
Power it on and it self-tunes to the room, so you are not fiddling with EQ every time you move it.
Bluetooth 5.2 pairs with your phone, and you can connect two devices at once and take turns with the playlist. Pair two Onyx Studio 8 speakers together when you want a wider stereo stage.
A built-in dual microphone is there for hands-free calls when the group chat turns into a conference call.
Good to know
Battery play time is up to 8 hours, depending on volume and what you are playing, and a full charge takes about 5 hours, per Harman Kardon.
It is made with recycled plastic and a recycled-polyester grille fabric. At about 7.76 pounds, it is portable, not pocketable.
If you are building a cozy night-in setup, our Barefoot Dreams throw and Bose QuietComfort headphones make easy companions.
Your questions, answered
How long does the battery last?
Harman Kardon says up to 8 hours of music play, depending on volume and content.
Can two people connect at once?
Yes. You can pair two Bluetooth devices and take turns playing.
Is it waterproof?
Harman Kardon markets it as a portable home speaker with recycled materials and self-tuning; check the brand page if you need a water-resistance rating for outdoor use.
How we checked this
This article is based on published coverage and available product information.
Last editorial update: November 6, 2026. Check the seller for current specifications and availability.
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