Bose SoundLink Flex Bluetooth speaker: Signature Bose sound wherever you go

(Image credit: Bose)

With the world opening up, and travels most definitely back on the agenda, you’ll need a portable speaker to provide the soundtrack to your adventures. But not just any portable speaker will do. 

You need one that sounds just as good whether it’s dangling from a backpack or taking centre stage in a hotel room. You need one that’s rugged enough to withstand everything that your journeys throw at it. And you need one that looks as good as it sounds.

You need the Bose SoundLink Flex, the waterproof portable speaker with signature Bose sound.

Roam sweet roam


(Image credit: Bose)

And what a sound it is. Using technology trickled down from Bose’s high-end speakers – not to mention its audio knowhow from nearly 60 years in the business – the SoundLink Flex wireless speaker provides audio that’s crisp, clear and free from distortion, giving you a completely unclouded listening experience. 

It walks a fine line between delicate trebles and powerful, booming bass, providing a faultless sonic performance whether you’re cranking it up to fill a room (or a festival campsite) or trying not to wake the neighbours in the next tent. And it digs up a tremendous amount of detail in every track, letting you pick up on nuances you might not have noticed previously. Load it up with a favourite album, and you might just discover hitherto unknown depths…

But it’s not just ideal for your travels; the superb sonics continue once you get home, too. Using the Bose Connect app, you can pair the SoundLink Flex with other compatible Bose Bluetooth speakers, including soundbars. So as you walk through the door, you can sync the SoundLink Flex with your home speaker set-up, including even your home cinema speakers, for a truly wireless multi-room system. Or extend your home audio system to the garden.



(Image credit: Bose)

But of course it’s built for the outdoors, and that’s where it really shines. Thanks to its powder-coated steel grille and silicone exterior, the SoundLink Flex is ready for whatever adventures you might take it on. And these durable materials mean it can withstand almost any mishap, like a fall to the floor. The grille’s thick coat of powder provides a rugged texture that not only makes the waterproof speaker easier to grip (even when wet), it also provides extra durability. It’s built to last, too – the powder coat won’t peel or flake, and it’s resistant to corrosion and UV light. So it will deal with the elements in all sorts of environments.

The high-tech electronics are protected by a tight seal, keeping them safe from water, dust and debris, so nothing gets between you and your sound. In fact, the Bose SoundLink Flex is rated IP67, meaning it’s completely dust-tight, and waterproof to a depth of 1m. Beach or desert, sea or pool, they’re all just a backdrop to the SoundLink Flex’s unique features. And if it gets dirty or sandy, you can just rinse it off with water. It even floats, so it won’t be sleeping with the fishes if you drop it over the side of your paddleboard.

The transducer and passive radiators underneath the steel grille are also made with rugged, waterproof materials, for extra peace of mind, so you can swim, sail and board without worrying.

In the loop

One of its standout features is the rugged utility loop, which lets you secure the SoundLink Flex to almost anything, giving it unparalleled versatility when it comes to listening. Attach it to a carabiner. Hang it from a beach chair. Strap it to your backpack. Dangle it from your handlebars. It makes the outdoor speaker ideal for almost any activity. You can even hang it in the shower, thanks to its waterproof design.

Designed to resist twisting, the loop won’t spin or turn when it’s hanging. And it works in collaboration with Bose’s PositionIQ tech to provide the perfect soundtrack to your adventures.

PositionIQ automatically detects which orientation the SoundLink Flex is in, and adjusts the audio accordingly. That means natural, lifelike sound whether the speaker is upright on a desk, hanging from a backpack, or lying flat on the beach catching some rays.

Handsfree controls


(Image credit: Bose)

But that’s not the end of its talents. It also doubles as a portable handsfree speaker for taking and making calls. Using its built-in microphone, you can touch base with the office or catch up with friends, wherever you are, whatever you’re doing. And when your hands are full, you can quickly access your phone’s Siri or Google Assistant voice assistant by pressing and holding the multifunction button for true handsfree controls.

It’ll last all day, too. When fully charged, the battery is good for 12 hours of use, whether you’re living it up in the great outdoors or just chilling with a Sunday playlist in the garden. And it comes in three discreet colours – Black, White Smoke, and Stone Blue – that will go with all sorts of outfits, whether it’s sea kayaking or the c-suite.

The SoundLink Flex combines durability, portability, and utility in an inviting, sophisticated package. It’s the ideal companion, wherever life’s adventures take you.

Buy the Bose SoundLink Flex from from John Lewis

What Hi-Fi?

What Hi-Fi?, founded in 1976, is the world's leading independent guide to buying and owning hi-fi and home entertainment products. Our comprehensive tests help you buy the very best for your money, with our advice sections giving you step-by-step information on how to get even more from your music and movies. Everything is tested by our dedicated team of in-house reviewers in our custom-built test rooms in London, Reading and Bath. Our coveted five-star rating and Awards are recognised all over the world as the ultimate seal of approval, so you can buy with absolute confidence.

Read more about how we test