No Sew
No Sew Betron B25 In-Ear Headphones Black 3.5mm 16g 112dB 20-20000Hz 1.2m
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
| Brand | Betron |
|---|---|
| Model | B25, B25GM |
| Part Number | B25 |
| Type | In-Ear |
| Color | Black |
| Driver Unit | 9 millimeters |
| Frequency Response | 20000 hertz |
| THD | In Ear |
| Input Impedance | 16 ohms |
| Signal to Noise Ratio(SNR) | 112 decibels |
| Power Supply | false |
| Sensitivity | 112 decibels |
| Connector | 3.5mm |
| Ear Coupling | Single Ear |
| Cord Length | Protective Case |
| Weight | 16 grams |
| Noise Cancelling | sound_isolation |
| Microphone Impedance | 16 ohm |
| Microphone Frequency Response | 20000 hertz |
| Microphone Signal to Noise Ratio(SNR) | 112 decibels |
| Microphone Sensitivity | 112 decibels |
| Compatibility | Wireless |
| Features | sound_isolation, Tangle Free, Noise Control, remote, Wired, In Ear, dynamic_driver, 16 ohm, Earphones |
| Windows Vista | Certified for Windows Vista |
| Package Contents | Earphones, 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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