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Silver Grey Mu7

Kef SP4029GA

Available in 2 Color(s)

Quick Specs

  • Type: Headphones

This item has purchase restrictions.

We currently only offer this product for purchase within 25 miles of our store. Questions? Contact us for more information.


Mu7 Noise Cancelling Over-ear Wireless Headphones deliver pristine, accurate, high-resolution sound on the go. Designed in collaboration with visionary designer Ross Lovegrove, the comfortable, intuitively easy-to-control Mu7 also features Smart Active Noise Cancellation for exceptional sound, everywhere.

Intuitive Touch Controls

Control of music and calls with simple swipes and taps

Smart Active Noise Cancellation

Monitors your environment and eliminates external noise

Clear Voice Capture (cVc)

Delivers clear voice calls no matter where you are

Up to 40-hr use

Up to 40-hour use at full charge (Bluetooth and ANC enabled)

Ergonomic Design

For comfort and fit

Fast charging

Fast charging of 15 mins allows for 8-hour use

Qualcomm ® aptX ™ HD

High-resolution sound up to 24bit/48kHz

Bluetooth 5.1

For exceptionally stable connections with both iOS and Android devices

Grille On Grille Off

See it from all angles
Looks as great as it sounds, use our 360 o interactive spin function to check out all the well-considered details of Mu7.

What is in the box
Mu7 Noise Cancelling Over-ear Wireless Headphones
USB-C charging cable
3.5mm audio cord
Flight adapter
Carrying case
Quick start guide, warranty

Model Mu7
Speaker Drivers 40mm
Max Power Output 15mW
Bluetooth 5.1
Codec SBC, AAC, aptX, aptX HD
Bluetooth Power Class 2
Bluetooth Range 10m
Bluetooth Frequency 2.402GHz - 2.48GHz
Li-ion Rechargeable Battery 1100mAh
Battery Play Time 40 hrs (BT + ANC on)
Fast Charging for 15 mins 8 hrs battery play time
Dimension (H x W x D) 199 x 153 x 89mm
Weight 309g
Operating Temperature -10°C to 45°C
Power Input DC 5V 900mA

Quick Specs

  • Appearance

  • Type: Headphones

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.