Get to know the Koss Porta Pros, a set of bargain headphones that provide good audio in a portable package, but not much else. At their price point, it’s hard to ask much more of them, but taking these headphones out onto a noisy area will be annoying as they don’t attenuate any noise.
|Driver Type||closed back dynamic|
|Sensitivity (at 1 kHz)||101 dB|
|Impedance (at 1 kHz)||60 Ohm|
|Frequency Low||15 Hz|
|Frequency High||25000 Hz|