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HiFiMAN HE400S Over-ear full-size planar-magnetic headphones

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  • $ 299

One of the highest efficiency planar phones in the world, HIFIMAN's HE400S sounds terrific on your smartphone or most any portable audio device.

HE400S delivers all the lifelike clarity, detail, extended bass and wide sound stage that audiophiles have come to expect from HIFIMAN.


  • Innovative headband and specially designed ear pads for remarkable comfort allowing you to enjoy your music for hours on end
  • Lightweight—only 350g
  • Planar headphones have conductive layers over almost all of the diaphragm. Evenly driven by these conductors, result is significantly lower distortion than conventional dynamic headphones.
  • Over-ear, open-back design
  • What's in the Box:
    • 1/4" (6.35 mm) headphone adapter
    • Headphone cable (1.5 meter or 4.9 feet; 3.5 mm plug)
    • Earpads—one pair (on the headphones)


  • Frequency Response: 20Hz – 35KHz  
  • Sensitivity: 98dB  
  • Driver: planar magnetic
  • Impedance: 22 ohms  
  • Weight: 12.35 oz
  • Cable Length: 1.5 m  
  • Plug: 3.5 mm / 6.35 mm

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