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Black in-ear headphones with 3.5mm plug and short cable

Superlux

Superlux HD381 In-ear Headset 16O 3.5mm .6m Cable

SKU CH-THWK-7WVX8

In-ear headset with 16 ohm impedance, 3.5 mm plug and .6 m cable delivering 103 dB sensitivity across 20-20000 Hz

  • ColorBlack
  • Wireless TypeN
  • SpeakerNo
  • Rich bass and powerful low end for immersive listening
  • 103 dB sensitivity delivers loud, clear audio from portable devices
  • 5 mm neodymium driver provides detailed sound reproduction
  • Patented cable wrapper clip keeps cord tidy and secure
  • Three ear adapter sizes ensure a comfortable, personalized fit

Superlux HD381 In-Ear Headset 3.5mm

The Superlux HD381 is a wired in-ear headset with a 3.5 mm plug and a 0.6 m cable. It uses a dynamic 13.5 mm neodymium driver to deliver a frequency response of 20-20,000 Hz. The package includes large and medium ear adapters for a personalised fit.

Suited for bass-focused listening and monitoring

Listeners who want pronounced low-end presence for music or stage monitoring will appreciate the boosted bass response. Users needing a longer cable, wireless freedom, an inline microphone, or a neutral reference tuning should consider other options.

103 dB sensitivity at 1 mW input

At 103 dB SPL per milliwatt, the HD381 reaches high volume levels from low-power sources such as phones or laptops without an external amplifier. This single figure determines whether your device can drive the headset loud enough for your environment.

Highlights

  • Rich bass and powerful low end for immersive listening
  • 103 dB sensitivity delivers loud, clear audio from portable devices
  • 5 mm neodymium driver provides detailed sound reproduction
  • Patented cable wrapper clip keeps cord tidy and secure
  • Three ear adapter sizes ensure a comfortable, personalized fit

Specifications

BrandSuperlux
SeriesHD381 Series
ModelHD381
ColorBlack
Wireless TypeN
SpeakerNo

Questions about this item

What comes in the box with the HD381 and what must I buy separately?

The package includes the in-ear headphones, a 0.6-metre extension cable, and large and medium ear adapters. Small adapters and any replacement tips are not included and must be purchased separately.

Should I choose the 16-ohm version or a higher-impedance model for portable use?

This model is only offered at 16 ohms, making it well suited for smartphones, laptops and other low-voltage sources without needing an external amplifier.

What does the 103 dB sensitivity rating mean for everyday listening volume?

At 103 dB SPL per milliwatt, the HD381 reaches loud volumes from typical phone or laptop outputs, so you rarely need to turn the source above mid-level.

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