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Special Price $129.99 Regular Price $229.99

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.

Promotion available through August 1st or while supplies last!

Promotion available direct from KEF and from your local KEF Dealer.

Product Features

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.

Active Noise Cancellation
Ergonomic design for comfort and fit
Up to 24-hrs use
Bluetooth 5.0
Fast charging of 5 mins for 1-hr use

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.

What's in the box Mu3

  • Mu3 noise cancelling true wireless earphones
  • Charging case
  • USB-C charging cable
  • 4 sets of silicone ear tips (large, medium, small, short)
  • Quick start guide, warranty
Reviews 3

Customer Reviews

  1. makes you want to listen for hours
    KEF really delivered with this. The promise of neutral sounds was not some excuse for underperformance. I've heard things in music that I've known for decades that I'd never heard before - even those I've listened to on pricey over ear headphones. The clarity, perfect amount of treble, bass and mids made me want to go through my entire library of music again. Other speakers or headphones gave me listener fatigue, but this lets me listen for hours and hours. Not to mention how comfortable they are to wear. Noise cancellation is sufficient for me, even in a noisy train. I didn't buy these for calls. I was looking for the best possible music reproduction in wireless headphones, and I'm really happy with them.

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  2. Top of its Class
    In this price range these are the best that I have heard. Neutral with buoyant bass. Like the other reviewer these fit my ears like a glove. Highly recommended.

    Review by

    Posted on

  3. Solid Value
    Great sense of audiophile detail in the music, decent bass, and very good mid-range. I would have loved to have some type of control with the coupling of some type of software. In addition to these IEM being very comfortable, they fit my ears perfectly. Overall I am very pleased with the quality of the sound these IEM bring out in my music...

    Review by

    Posted on

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You're reviewing: Mu3

Model MU3
Speaker drivers 8.2mm
Frequency range 20-20000Hz
Sensitivity 104dB/1mW at 1KHz (1KHz 1mW)
Impedance 16Ω
Max power output 5mW
Bluetooth 5.0
Codec SBC, AAC
Bluetooth Power ≤13dBm
Bluetooth range 10m
Bluetooth frequency 2.402GHz-2.48GHz
Li-ion rechargeable battery 50mAh (earbud)/ 350mAh (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)
Weight 5.8 g (earbud)
46.8 g (charging case)
Operating temperature -10°C to 45°C
Power Input DC 5V 600mA

* Measurement per unit

** KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. **

MU3 Information Sheet Download