You squeeze the memory foam before inserting it, and it expands inside the ear canal for a snug seal. That seal blocks outside noise and keeps the bass in. The noise cancelling marked in the supplier data means exactly this passive isolation; the headphones have no electronic ANC. With 112 dB sensitivity a phone drives them to plenty of volume.
The Plug suit people who listen on public transport, on a plane or in a noisy room and want simple wired headphones with no battery. They have no microphone, so they are made for listening rather than calls.
| Brand | Koss |
|---|---|
| Colour of product | Black |
| Headphone sensitivity | 112 dB |
| Headphones connection type | Wired |
| EAN | 021299147573 |
| Wearing style | In-ear |
|---|---|
| Impedance | 16 Ω |
| Frequency range | 10-20k Hz |
| Microphone | No |
| Noise canceling | Yes |
| Connector type | 3.5 mm |
|---|---|
| USB charging port | No |
| Wireless connection | No |
|---|---|
| Wireless | No |
| Other features | Memory foam ear cushionsAdditional soft foam ear cushions included. |
|---|
| Net weight | 0.013 kg |
|---|
No. The memory foam tips block noise passively; there is no electronic noise cancelling and no battery.
Yes, according to Koss additional soft foam tips are included.
No, The Plug has no microphone.
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