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Red on-ear headphones with adjustable headband and 3.5 mm plug

Koss

Koss KPH7R On-Ear Headphone Red 80-18000 Hz 32 ohm 91 dB 3.5 mm 4 ft

SKU CH-HHPH-JX84Z MPN KPH7R

Lightweight on-ear headphones with adjustable headband, 80-18,000 Hz response, 32 ohm impedance, 91 dB sensitivity, 3.5 mm plug and 4 ft cord

  • TypeOn-Ear
  • ColorRed
  • Frequency Response80Hz-18KHz
  • Input Impedance32 ohms
  • Sensitivity91db SPL sensitivity
  • Connector3.5mm
  • Lightweight build suits portable listening
  • Adjustable headband gives a secure, comfortable fit
  • 80 Hz to 18,000 Hz range covers deep bass to clear highs
  • 32 ohm impedance and 91 dB sensitivity work well with mobile devices
  • 5 mm plug and 4 ft cord connect to standard audio jacks

Lightweight On-Ear Headphones for Portable Listening

The Koss KPH7R is a red on-ear headphone built for portable stereo use. Its lightweight design suits listeners who want the Sound of Koss without bulk. An adjustable headband gives a secure, comfortable fit. The straight, dual-entry cord measures four feet and ends in a 3.5 mm plug.

Simple Plug-and-Play Connection

Connecting is straightforward: insert the 3.5 mm plug into any compatible jack. The straight cable avoids tangles common with coiled cords. Dual-entry wiring means both earcup leads join at the plug, so a single snag can pull both sides. The adjustable headband slides to fit most heads, though very large heads may find the range limited.

Wired 3.5 mm Interface Limits

The analogue 3.5 mm connection relies on the source device for amplification. With 32 ohm impedance and 91 dB sensitivity, the headphones reach usable volume from most portable players. Frequency response spans 80 Hz to 18,000 Hz, so sub-bass below 80 Hz and harmonics above 18 kHz are not reproduced. The four-foot cord restricts distance from the source.

Highlights

  • Lightweight build suits portable listening
  • Adjustable headband gives a secure, comfortable fit
  • 80 Hz to 18,000 Hz range covers deep bass to clear highs
  • 32 ohm impedance and 91 dB sensitivity work well with mobile devices
  • 5 mm plug and 4 ft cord connect to standard audio jacks

Specifications

BrandKOSS
ModelKPH7R
TypeOn-Ear
ColorRed
Frequency Response80Hz-18KHz
Input Impedance32 ohms
Sensitivity91db SPL sensitivity
Connector3.5mm
Cord Length4 ft.
FeaturesAdjustable headband for comfort and secure fit
3.5mm plug and 4 ft. cord
Deep base response
Shipping weight0.09 kg
Package size201 × 130 × 8 mm

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Questions about this item

How can I confirm the headphones are delivering the full 80 to 18,000 Hz range after plugging them in?

Play a frequency sweep test track and listen for audible output from the lowest bass up to the highest treble; the 32 ohm impedance and 91 dB sensitivity mean a phone or laptop will drive them to a clear volume.

What comes in the box and is anything else needed to use them with a phone?

The box contains the red on-ear headphones with an attached straight dual-entry 4 ft cord ending in a 3.5 mm plug; no adapter or battery is required for devices with a 3.5 mm jack.

The listing shows only one red model — are there other versions or capacities to choose from?

This MPN KPH7R is the single red on-ear variant; no alternate colours, impedances or cord lengths are offered for this model.

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