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No Sew

No Sew Betron B25 In-Ear Headphones Black 3.5mm 16g 112dB 20-20000Hz 1.2m

SKU CH-YY6S-42SM0

Wired in-ear headphones with 9 mm drivers deliver 20 Hz to 20000 Hz response, 112 dB sensitivity, 16 ohm impedance, 1.2 m cable and 3.5 mm jack

  • TypeIn-Ear
  • ColorBlack
  • Driver Unit9 millimeters
  • Frequency Response20000 hertz
  • THDIn Ear
  • Input Impedance16 ohms
  • Noise isolation keeps audio clear at lower volumes
  • 112 dB sensitivity delivers loud sound with less power
  • 16 g lightweight build stays comfortable all day
  • 2 m tangle‑free cord with gold‑plated 3.5 mm jack
  • Three silicone tip sizes give a secure custom fit

Wired In-Ear Design for Everyday Listening

The Betron B25 are wired in-ear headphones built for listeners who want a simple, plug-and-play connection. They use a standard 3.5mm gold-plated jack and a 1.2-meter tangle-free braided cable. The lightweight aluminum housings weigh 16 grams and include a carrying case for protection. No microphone or inline controls are fitted, keeping the operation straightforward.

Suits Listeners Wanting Pure Audio Without Extras

These suit anyone who prefers a direct wired link to phones, tablets, laptops or game controllers with a compatible 3.5mm port. They are not for buyers who need a built-in microphone for calls, inline volume or track controls, or wireless freedom. Users requiring active noise cancellation or a different connector type should look at other models.

Silicone Tips and Case Improve Fit and Portability

Three sizes of silicone ear tips (S/M/L) are bundled to help you secure a comfortable, noise-isolating seal that blocks ambient sound. The included carrying case stores the earphones and spare tips neatly, protecting the aluminum housings and braided cable during transport. These accessories directly affect daily comfort and the effectiveness of the passive isolation.

Highlights

  • Noise isolation keeps audio clear at lower volumes
  • 112 dB sensitivity delivers loud sound with less power
  • 16 g lightweight build stays comfortable all day
  • 2 m tangle‑free cord with gold‑plated 3.5 mm jack
  • Three silicone tip sizes give a secure custom fit

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

Do I need a device with a 3.5 mm headphone jack to use these earphones?

Yes, the Betron B25 connects through a standard 3.5 mm gold-plated plug, so the source device must provide that jack or a compatible adapter.

Will the 16 ohm impedance work well with my older MP3 player or laptop?

The 16 ohm input impedance is designed for easy driving by portable players, laptops, tablets and similar low-power outputs without an external amplifier.

How can I confirm the earphones are reproducing the full 20 Hz to 20000 Hz range after I plug them in?

Play a frequency-sweep test track; you should hear continuous output from the lowest bass up to the highest treble without obvious gaps or distortion.

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