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HD 400 S Wired Headphones

Owner Satisfaction

4.4

/ 5

 

Category Rank

2114

/ 5518

#2114 in Headphones

Price vs Category Average

-85%

Below average

Impedance

18

/ Ω

 

Who it's for

  • Reliable Sennheiser Sound Signature
  • Excellent Foldable Portability
  • Convenient Inline Controls

Who should skip it

  • Fixed, Non-Detachable Cable
  • Budget Plastic Construction
  • Potential Long-Term Clamping Discomfort

Key Specs

Impedance

18 Ω

Frequency Response (Headphones)

18–20,000 Hz (-10 dB)

Frequency Response (Microphone)

100 – 10,000 Hz (-10 dB)

Sound Pressure Level (SPL)

120dB (1kHz/1Vrms)

Total Harmonic Distortion (THD)

<0.5% (1kHz/100dB)

Cable Length

1.4m

Jack Plug

3.5mm angled

Weight

217g

Features

  • Delivers dynamic bass and a well-extended sound response via Sennheiser dynamic drivers.
  • Features a convenient one-button smart remote integrated into the cable for easy call and music management.
  • Sturdy folding design ensures durability and compact storage for portability.
  • Closed-back acoustics provide passive noise isolation.
  • Omni-directional microphone pickup pattern for clear voice capture.
  • Lightweight design at 217g for comfortable extended wear.

What customers say

Consumers consistently praise the HD 400 S for delivering exceptional sound quality that significantly outperforms its modest price tag. The audio signature is reliably clear and balanced, upholding Sennheiser's reputation even in this entry level category. While some users find the fit snug during extended use, the overwhelming consensus centers on the remarkable value. This is a smart choice for listeners prioritizing great audio without a premium investment.

Hayley

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HD 400 S Wired Headphones

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$90

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