KEF Noise Cancelling True Wireless Earphones Mu3 User Manual
- June 7, 2024
- KEF
Table of Contents
Mu3
Noise Cancelling True Wireless Earphones
Sound by KEF. Design by Ross Lovegrove.
With KEF’s Mu3 Noise Cancelling True Wireless Earphones you are free to enjoy
pristine sound everywhere. KEF has once again collaborated with visionary
designer Ross Lovegrove, the latest step in a relationship that started with
the incredible Muon loudspeakers, through Muo Bluetooth speakers and now the
Mu3 earphones. Designed to be both comfortable and elegant, Mu3’s flowing,
sculptural lines and smart engineering ensure a perfect fit while also
delivering exceptional sound on the move.
KEF’s signature pure and accurate sound
Each of the Mu3 earphones’ sculptural enclosures contains an 8.2mm full-range dynamic driver. These are expertly tuned by the same KEF engineering team responsible for our loudspeakers, ensuring consistently pure and accurate sound on the move, with rich midrange, detailed bass and crisp high tones, capable of revealing even the most subtle nuances of music.
All-day, anyway
Active Noise Cancellation
The audio performance of the Mu3 earphones benefits from KEF’s specially tuned
Active Noise Cancellation, which eliminates external noise without affecting
the details that bring music to life. The earphones also boast Ambient Mode,
where at the touch of a button Active Noise Cancellation is disengaged and
instead the audio picked up on the microphones is played through the
earphones, bypassing passive noise reduction and providing you with instant
clarity on what is going on around you.
Hassle-free with Bluetooth 5.0
Mu3’s audio performance is further enhanced by the introduction of
simultaneous transmission, where both earphones receive a signal at the same
time, rather than the more usual approach where audio is sent to one earpiece
and relayed to the other, therefore running the risk of introducing latency.
Coupled with Bluetooth 5.0 connectivity, simultaneous transmission means the
Mu3 earphones deliver a seamless performance, are simple to connect and
exceptionally stable on both iOS and Android devices.
All-day listening and fast charging
A high-capacity battery combines with smart power management and fast-charge
technology to ensure the Mu3 earphones keep going as long as you do. Mu3 can
keep 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. And don’t worry if you get caught out in a shower, because with
their IPX5 splash-proof design, these headphones are good for a little dancing
in the rain.
Comfort and ease
Compact, ergonomic design
The Mu3 earphones are perfectly balanced in the ear thanks to the smart way
they are weighted, which stops them wanting to fall out. A comprehensive
analysis of different ear shapes and sizes has led to the development of four
subtly different sized ear tips that are designed to rest on the ear concha to
ensure you get the most comfortable fit for your ears, while also providing
the perfect seal for noise isolation and to keep them securely in place.
Summary of features
- Active Noise Cancellation tuned to eliminate external sound while preserving nuance and detail
- 8.2mm full-range dynamic driver engineered to reveal the smallest details of your favourite music
- Bluetooth 5.0 for exceptionally stable connections with both iOS and Android devices
- Ergonomic design for comfort and fit
- IPX5 splash-proof design for all weather conditions
- Up to 24-hours use (9 hours at full charge; plus 15 hours with charging case)
- Fast charging of 5 mins for 1-hour use
- 4 sets of ultra-soft silicone ear tips for optimal comfort and fit (large, medium, small, short)
Intuitive control
KEF’s engineers understand that control is vital when using earphones, which
is why the Mu3 earphones feature a highly intuitive, incredible responsive
user interface. And because we know you may be doing other things while you
listen to music, each of the earbuds includes a multi-function button for full
control of music playback, volume and calls for instant control when only one
hand is free.
Design by Ross Lovegrove
Renowned for his innovative approach and flowing, sculptural forms, Ross
Lovegrove brings a new dimension to sound. Through design that embraces both
beauty and technological ingenuity, Lovegrove’s ongoing collaboration with KEF
is an exercise in aesthetic and engineering excellence.
The Mu3 earphones may be small, but they radiate a sculptural look and feel
that belies their compact dimensions. The collaboration with Ross Lovegrove
has once again resulted in a product that is the very definition of technology
as art, and a design that smartly complements the KEF philosophy.
Specifications
| 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
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
- Quick start guide, warranty
Visit: KEF.com for more about KEF and its products.
KEF reserves the right, in line with continuing research and development, to
amend or change specifications. E&OE.
02.2021 | Mu3