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  • Regular price £199 / set
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Sound by KEF. Design by Ross Lovegrove.

KEF’s Mu3 Noise Cancelling True Wireless Earphones are engineered to deliver pure, accurate sound everywhere. Designed in collaboration with visionary designer Ross Lovegrove, the Mu3s deliver exceptional sound on the move while being comfortable and elegant.
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Active Noise Cancellation

Tuned to eliminate external sound while preserving nuance and detail
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Bluetooth 5.0

For exceptionally stable connections with both iOS and Android devices
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Ergonomic design

For comfort and fit

Ambient mode

When you need to be aware of the surroundings
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IPX5 Splash-Proof

Designed for all weather conditions
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Up to 24-hrs use

9 hours at full charge plus 15 hours with charging case
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Fast Charging

Fast charging of 5 mins allows for 1-hour use

Voice Call

Take calls with a simple press

The sound & design journey continues

Mu3 is the new chapter in the sound and design journey of KEF and Ross Lovegrove. Renowned for his innovative approach and flowing, sculptural forms, Lovegrove and KEF have already created the Muon and Muo. Mu3 defines technology as art; a design that complements KEF’s obsession with pure, accurate sound.

Pure, accurate sound…anywhere

Each of Mu3’s sculptural earphones contains a full-range driver expertly tuned by the same engineers behind KEF loudspeakers. This ensures pure and accurate sound on the move, with rich midrange, detailed bass and crisp high tones, capable of revealing the subtle nuances of your favourite music.

All day, any way

Remove or reveal your surroundings

KEF’s specially tuned Active Noise Cancellation eliminates external noise without affecting the details that bring music to life. At the touch of a button, Mu3’s Ambient Mode disengages noise cancellation providing you with instant clarity on what is going on around you.

All-day listening

Mu3 earphones keep going as long as you do, keeping you entertained for up to 24 hours, with 9 hours on-board battery life, plus up to 15 hours with the charging case. And, if you are desperate to use them quickly, fast charging delivers a full hour of use from only 5 minutes charging.

Seamless connectivity

Both Mu3’s earpieces receive a signal at the same time, rather than the usual approach where audio is sent to one and relayed to the other. Coupled with Bluetooth 5.0 connectivity, this means they deliver a seamless performance, are simple to connect and highly stable with iOS and Android devices.

Comfort and Ease

Designed for your ears

The Mu3s are perfectly balanced in the ear thanks to the smart way they are weighted. Four subtly different sized ear tips are designed to rest on the ear concha, ensuring you get the most comfortable fit, while also providing the perfect seal for noise isolation and to keep them securely in place.

Intuitive control

KEF’s engineers understand that control is vital when using earphones, which is why the Mu3 features a highly intuitive, incredibly responsive user interface. Each of the earbuds includes a multi-function button for full control of music playback, volume and calls for instant control.

Design by Ross Lovegrove

Through working with KEF, Ross Lovegrove brings a new dimension to sound; designs that embrace beauty and technological ingenuity are an exercise in aesthetic and engineering excellence. So while the Mu3 earphones are small, they radiate a sculptural look and feel that belies their dimensions.
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What's in the box

Mu3 noise cancelling true wireless earphones
Charging case with built-in wireless charging
USB-C charging cable
4 sets of silicone ear tips (large, medium, small, short)
Quick start guide, warranty

The Details


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Speaker Drivers
Frequency Range
104dB/1mW at 1KHz (1KHz 1mW)
Bluetooth Frequency
Bluetooth Power
Max Power Output
Bluetooth Range
Li-Ion Rechargeable Battery
55mAh (earbud)/ 500mAh (charging case)
Battery Play Time (Earbud)
9 hrs (BT + ANC on)
Battery Play Time (Charging Case)
15 hrs
Fast Charging for 5 mins
1 hr battery play time
Dimension (H x W x D)
24.5 x 17.5 x 26.3 mm (earbud)
33.5 x 62 x 52 mm (charging case)
5.8 g (earbud)
46.8 g (charging case)
Power Input
DC 5V 600mA
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.


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Customer Reviews

Based on 23 reviews
Chris woolrich (Stoke-on-Trent, GB)

Ive been a long time buyer of Kef speakers. So purchased a set of these for our autistic daughter, the noise cancelling feature works brilliantly. Sound quality is far better than previous wireless headphones she had. Battery life, standby time and charging time are really good.

The build quality is really high. and in ear fit adapters are better than than she's had previously.

Kamran Farooq (Bristol, GB)
The best sounding earbuds on the planet. Period.

I just can't get over how amazing these tiny little earbuds sound. Every sound, every nuance is fully realised on such a wide soundscape. I swear I can hear things in music that I never knew was there. I own a pair of KEF floorstanders that are 10 years old, and these earbuds are the equivalent of having those strapped to my head. And the base. Wow. I can honestly I have never experienced such deep base from a pair of headphones. It's not boomy or super deep, just perfect, but able to reach parts of the ear I never thought possible. Those background rumbles that you can feel throughout your body. I've listened to a few audiophile playlists on Spotify and just can't get over how perfectly realised they are when using my Mu3 earbuds.

In terms of comfort, these sit so nicely in my ear and I hardly notice they are there. I love the fact that they have actual controls rather than touch sensitive ones that are often accidentally activated.

I am beyond impressed. These earbuds may not have all the flexibility of some competitive brands that are great for conference calls. I don't care much for that however, as when it comes to sound quality, these are pretty much unmatched by anything out there.

If it's an amazing audio experience you seek then this is the product for you. Buy them. Seriously.

Gary Smith (Mirfield, GB)
Brilliant earbuds

I love the small size yet powerful sound from these earbuds.
I can listen to music in bed and lie on my side without the earbuds hurting my ears.
The Active Noise Cancelling is excellent and all this at such a competitive price.
I love them 🥰🥰🥰

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