KEF M400 On Ear Headphones


Seriously cool on-ears, with outstanding sound quality from state-of-the-art driver technology in a seductively sleek design that's engineered for total comfort.


    As you might expect from people who are obsessed with high resolution sound, the beauty of the M400 is more than skin deep. With KEF’s ultra-light 40mm neodymium driver and copper clad aluminum wire (CCAW) voice coil, the M400 reveals all the glories of the original performance: crisp, intricately detailed highs, seamlessly fluid midrange and tight, clean bass. Music you can feel – and so realistic, you can almost touch it. Your favorite tracks never sounded so good.


    Lightweight, compact and built to withstand years of use on the move as well as at home, the M400 has all the makings of a true design classic. The invisibly hinged folding frame is engineered from precision-machined cast aluminum, with supremely comfortable supra-aural ear pads and a leather-covered headband contrasting with four silky premium finishes: Racing Blue, Sunset Orange, Deep Black or Champagne White.


    Padded with high density memory foam covered in soft, sweat resistant protein leather, the ball-jointed ‘race-track’ ear pads fit the exact shape of your ear and form an effective seal that cuts out external noise while preventing sound leakage. The light, sturdy aluminum frame exerts the right amount of gentle pressure that allows you to enjoy your music in comfort for as long as you want.


    Complementing all Apple and most other digital devices, M400 features an integrated inline microphone and remote control on a detachable cable, allowing you to operate the play functions or switch between calls and music. The frame is discreetly hinged to fold neatly away for ease of storage when not in use, and like other KEF headphones, the M400 protects you against excessive sound pressure in line with the CENELEC standard. Sublime sound quality, thanks to KEF innovation. Engineered for durability and class-leading comfort. And a flair for design that makes other headphones look boring. At the price, nothing else comes close.

    • Driver (Headphone): 40 mm
    • Frequency Response: 20Hz~20kHz
    • Sensitivity: 101.5 dB±4dB (IEC-60711 at 1KHz)
    • Impedance: 32±15% Ohm
    • Maximum Input Power: 30mW
    • Noise Attenuation: -20dB
    • Cable Length: 1.3 m
    • Connector: 3.5 mm
    • Weight: 175g