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HD 400s


Inclusive of all taxes
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The HD 400S features a one-button smart remote conveniently located on the cable, which allows you to control music and take calls with ease, and the sturdy folding design makes these headphones durable and compact enough to be taken anywhere. Sennheiser dynamic drivers deliver a well-extended sound response with dynamic bass.


  • Renowned Sennheiser sound quality for a unique listening experience.

  • Built-in microphone and remote for call and music control.

  • Closed-back around-ear headphones reduce unwanted background noise for your comfort.

  • Lightweight, foldable headphones for easy on-the-go storage.

Technical Data


18 Ω

Frequency response (Microphone)

100 – 10,000 Hz (-10 dB)

Frequency response (Headphones)

18–20,000 Hz (-10 dB)

Sound pressure level (SPL)

120dB (1kHz/1Vrms)

THD, total harmonic distortion

<0.5 % (1 kHz, 100 dB) 

Ear coupling


Jack plug

3.5 mm angled

Cable length

1.4 m

Transducer principle



217 g

Pick-up pattern

Omni directional



Microphone sensitivity



120 dB SPL @ 1 kHz, 1V RMS

What's in the box?

  • D 400S around-ear headphones
  • RCS 400 detachable single-sided cable with 1-button remote and 3.5 mm angled plug

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