Harman Kardon Onyx Studio 5

Put on your favourite playlist and let your music fill the room, for up to eight hours. The Onyx Studio 5 lets you connect two devices over Bluetooth, and its carrying handle makes it perfectly portable.

No longer available
Buy now:



In Stock.

Out of stock for home delivery

Home delivery in


This item wasn't added to your basket. Try again.

Added to basket

Go to basket

Check for stock in your nearest store?

See when you can collect this device from your nearest store.

Stores nearest to ""

At the end of the checkout process, you can book an O2 Guru to help you set up your phone.

You'll need to confirm your click and collect selection at check-out.

Stores nearest to

Are you an existing customer?

Existing Customers

Existing Customers

You will need to have an existing iPhone 6 or above and have an O2 pay monthly connection in order to pair your watch.

New Customers

New Customers

You will need to purchase an iPhone
6 or above on an O2 Pay
monthly tariff before you can add a watch. Once purchased, you can come right back and add the watch
you like.

You will need to purchase an iPhone 6 or above on an O2 Pay monthly tariff before you can add a watch. Once purchased, you can come right back and add the watch you like.


  • Stream your music wirelessly

  • Up to eight hours of playback

  • Connect to other Onyx Studio 5 speakers

  • Made from premium materials

  • See features

    Stream from two devices

    Can’t agree who’s got the better playlist? Connect both phones and battle it out. The Harman Kardon Onyx 5 lets you stream your music over Bluetooth from two devices, so you can enjoy your old favourites or let someone else take over. Whatever you choose, the powerful speaker will fill the room with music. Got another Onyx Studio 5? Simply connect them to get wireless dual sound.

    Play your music for longer

    The last thing you need is a speaker that cuts out halfway through your favourite song. But with eight hours of playtime, you don’t have to worry about the Onyx Studio 5 running out of juice. It’s got a rechargeable battery, so just power up and you’re good to go.

    Take it anywhere

    Make the Onyx Studio 5 your centrepiece. It’s designed to have an elegant look and feel, with its aluminium and fabric finish. And because it’s wireless, you can admire it from anywhere in the room. Heading out? Take your speaker with you. It’s got a carrying handle, so it’s easy to transport.

    What’s in the box?

    1x Harman Kardon Onyx Studio 5
    1x Power adaptor
    1x Quick start guide
    1x Safety sheet
    1x Warranty card


Tech spec

Why O2?


O2 Gurus

Meet our Gurus - your friendly experts in all things tech.

From helping you set up your new device, to getting you up to speed with the latest tech - O2 Gurus are here to help. Book a Guru session in your nearest store, take a look at our videos or chat to us online.

Learn more



Get exclusive tickets, offers and experiences.

Priority is your VIP pass to all sorts of exclusive treats. Big and small. From a free coffee every Tuesday to discounts at your favourite restaurants. Try getting tickets to that gig 48 hours before your friends. And then there's your chance to win once-in-a-lifetime experiences.

It's all on Priority and it's only on O2.

Learn more


My O2

Manage your account 24/7 with My O2.

Keep an eye on your bills, data usage and more, plus add Bolt Ons when you need them - wherever you are. You can also make payments and top up your credit as well as manage your upgrades.

We've also got a free app that highlights who you call and text the most by syncing with your contacts.

Learn more

O2 Recycle

Top picks

Rep example