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Black in-ear wired headphones with metal housing and braided 1.2m cable, 3.5mm plug

Betron B25 In-Ear Wired Headphones Black 3.5mm 1.2m

SKU CH-SCQR-K1TGF

Wired in-ear headphones with 9 mm drivers, 3.5 mm connector, 1.2 m cable, 112 dB sensitivity and passive noise isolation

  • TypeIn-Ear
  • ColorBlack
  • Driver Unit9 millimeters
  • Frequency Response20000 hertz
  • THDIn Ear
  • Input Impedance16 ohms
  • Rich bass and clear detail from 9 mm dynamic drivers
  • Blocks outside noise with sound-isolating in-ear fit
  • Works with any device that has a 3.5 mm jack
  • Tangle-free 1.2 m braided cord with gold-plated plug
  • Lightweight 16 g aluminium housings with three tip sizes included

Wired In-Ear Headphones for Everyday Listening

The Betron B25 are lightweight in-ear headphones weighing 16 grams with a 1.2 metre tangle-free cord. They use a 3.5 mm gold-plated connector for direct plug-in to compatible laptops, tablets, computers, audio players and game controllers. The aluminium housing and braided cable are built for daily transport. Three silicone ear tip sizes (S/M/L) and a carrying case are included for a secure, portable fit.

Noise-Isolating Fit Without Microphone or Controls

Passive noise isolation blocks ambient sound so music stays clear at lower, safer volumes. The acoustic port controls airflow to optimise diaphragm movement for accurate bass reproduction. No inline microphone or remote is present, keeping the connection simple for devices that only need stereo audio output. A Y-shape cord routes cleanly to each earpiece.

Sustained Listening with Consistent Output

The 9 mm dynamic drivers deliver a 20 Hz to 20000 Hz frequency response with 112 dB sensitivity and 16 ohm impedance. This specification supports steady volume levels during long sessions without requiring external power. Total harmonic distortion is rated for in-ear use, and the signal-to-noise ratio of 112 dB keeps background hiss low across the full frequency range.

Highlights

  • Rich bass and clear detail from 9 mm dynamic drivers
  • Blocks outside noise with sound-isolating in-ear fit
  • Works with any device that has a 3.5 mm jack
  • Tangle-free 1.2 m braided cord with gold-plated plug
  • Lightweight 16 g aluminium housings with three tip sizes included

Specifications

BrandBetron
ModelB25, B25GM
Part NumberB25
TypeIn-Ear
ColorBlack
Driver Unit9 millimeters
Frequency Response20000 hertz
THDIn Ear
Input Impedance16 ohms
Signal to Noise Ratio(SNR)112 decibels
Power Supplyfalse
Sensitivity112 decibels
Connector3.5mm
Ear CouplingSingle Ear
Cord LengthProtective Case
Weight16 grams
Noise Cancellingsound_isolation
Microphone Impedance16 ohm
Microphone Frequency Response20000 hertz
Microphone Signal to Noise Ratio(SNR)112 decibels
Microphone Sensitivity112 decibels
CompatibilityWireless
Featuressound_isolation, Tangle Free, Noise Control, remote, Wired, In Ear, dynamic_driver, 16 ohm, Earphones
Windows VistaCertified for Windows Vista
Package ContentsEarphones, Eartip, Protective Case, User Manual

Questions about this item

How much does the 16-ohm impedance limit volume when the Betron B25 is driven hard from a phone or laptop?

The 16-ohm load is easy for most portable sources to drive, so the headphones reach loud levels without stressing the output stage; the 112 dB sensitivity means even modest voltage produces high SPL.

Will the aluminium housing and 1.2 m braided cable stay cool and quiet during all-day listening?

Passive in-ear monitors generate no heat and have no moving parts, so they remain silent and at ambient temperature regardless of how long they are used.

What source connector must I already have for the 3.5 mm plug to work without an adapter?

A standard 3.5 mm headphone jack — found on most laptops, tablets, audio players and game controllers — is required for direct connection.

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