KEF MU7 Wireless Headphones
High-Resolution Wireless Sound with Smart Active Noise Cancellation
The KEF Mu7 is a premium noise-cancelling over-ear wireless headphone designed to deliver pristine, accurate and high-resolution sound wherever you go. Developed in collaboration with renowned designer Ross Lovegrove, the Mu7 combines sophisticated sculptural aesthetics with advanced acoustic engineering and intuitive touch controls.
Featuring custom-tuned 40mm full-range dynamic drivers, Qualcomm aptX HD technology and Smart Active Noise Cancellation, the Mu7 provides an immersive listening experience with exceptional clarity and musical detail. With up to 40 hours of battery life and fast charging, it is designed for effortless everyday listening and travel.

Feature Highlights
- 40mm Full-Range Dynamic Drivers for detailed, accurate and high-resolution audio reproduction.
- Smart Active Noise Cancellation for an immersive listening experience with reduced environmental noise.
- Qualcomm aptX HD Bluetooth Audio supporting high-resolution audio up to 24-bit/48kHz.
- Up to 40 Hours of Battery Life with Bluetooth and ANC enabled.
- Fast Charging provides up to 8 hours of playback from just 15 minutes of charging.
- Intuitive Touch Controls for convenient music playback, volume adjustment and call management.
- Ergonomic Over-Ear Design with comfortable memory foam ear cushions.
- Designed in collaboration with renowned designer Ross Lovegrove.

Key Features
- Custom-Tuned 40mm Full-Range Dynamic Drivers:
Each earcup features a precisely engineered 40mm full-range dynamic driver, delivering detailed, natural and accurate sound reproduction across the entire frequency range.
- High-Resolution Audio with Qualcomm aptX HD:
Advanced Qualcomm aptX HD Bluetooth technology supports audio transmission up to 24-bit/48kHz, allowing compatible devices to deliver greater musical detail and clarity.
- Smart Active Noise Cancellation:
Intelligent noise cancellation uses multiple filters to detect and reduce surrounding environmental noise across different frequencies, helping create a more immersive listening experience.
- Intuitive Capacitive Touch Controls:
The touch-sensitive control panel on the right earcup allows users to play or pause music, answer calls, skip tracks, adjust volume and activate voice assistants through simple taps and swipes.
- Up to 40-Hour Battery Life:
Enjoy up to 40 hours of continuous playback with Bluetooth and Smart Active Noise Cancellation enabled, providing reliable performance for extended listening sessions and travel.

- Fast Charging Technology:
A quick 15-minute charge provides up to 8 hours of playback, making it easy to enjoy music even when time is limited.
- Premium Ergonomic Design:
Designed for long-lasting comfort, the Mu7 features memory foam ear cushions that adapt to the shape of the head, while carefully balanced headband pressure helps provide a comfortable acoustic seal.
- Wireless and Wired Connectivity:
Enjoy convenient wireless listening through Bluetooth or connect using the supplied 3.5mm audio cable for wired playback with compatible devices, including dedicated headphone DACs and amplifiers.
- Design by Ross Lovegrove:
Created in collaboration with internationally renowned designer Ross Lovegrove, the Mu7 combines flowing sculptural forms, refined materials and elegant finishes to complement its high-performance audio technology.
Technical Specifications
- Model:
KEF Mu7
- Product Type:
Noise Cancelling Over-Ear Wireless Headphones
- Speaker Drivers:
40mm Full-Range Dynamic Drivers
- Frequency Response:
20Hz – 20kHz
- Maximum Power Output:
15mW
- Active Noise Cancellation:
ANC On, Smart ANC and ANC Off
- Bluetooth Version:
Bluetooth 5.1
- Bluetooth Audio Codecs:
SBC, AAC, aptX and aptX HD
- Bluetooth Frequency:
2.402GHz – 2.48GHz
- Bluetooth Power Class:
Class 2
- Bluetooth Range:
Up to 10m
- Battery Type:
Rechargeable Lithium-Ion Battery
- Battery Capacity:
1,100mAh
- Battery Life:
Up to 40 Hours (Bluetooth and ANC Enabled)
- Fast Charging:
15 Minutes of Charging Provides Up to 8 Hours of Playback
- Power Input:
DC 5V / 900mA
- Dimensions (H x W x D):
199 x 153 x 89mm
- Weight:
309g
- Operating Temperature:
-10°C to 45°C
- Available Colours:
Silver Grey / Charcoal Grey

What's in the Box
- KEF Mu7 Wireless Headphones
- USB-C Charging Cable
- 3.5mm Audio Cable
- Flight Adapter
- Carrying Case
- Quick Start Guide and Warranty Documentation