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  • $29900

Easy to Drive

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


Superb Hi-Fi Quality

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


Long Hours of Comfortable Listening

Innovative headband and specially designed ear pads for remarkable comfort allowing you to enjoy your music for hours on end

Lightweight: Only 350g!


Why Choose A Dynamic Headphone…When You Can have Planar?

Dynamic headphones utilize conductors that vibrate in limited areas of the diaphragm. Result is that a large percentage of the diaphragm cannot be directly driven by those conductors.

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.


Fit Over Ear
Jack plug 3.5mm
Transducer type Planar Magnetic
Frequency Response 20Hz-35KHz
Impedance 22 Ohms
Sensitivity 98 dB
Maximum Power handling 6W
Weight 12.3 Oz / 350g / 0.77 lb
What's in the box 1. ¼” (6.35 mm) headphone adapter 2. Headphone Cable (1.5 meter or 4.9 Feet; 3.5mm plug) 3. Earpads:1 pair (on the headphone)

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