![Amazon.com: Massdrop x Koss Porta Pro X On-Ear Headphones — Noise-Cancelling in-line Microphone, Activate Voice Assistant or Skip Tracks with in-line Remote, Collapsible for Maximum Portability (Midnight Blue) : Electronics Amazon.com: Massdrop x Koss Porta Pro X On-Ear Headphones — Noise-Cancelling in-line Microphone, Activate Voice Assistant or Skip Tracks with in-line Remote, Collapsible for Maximum Portability (Midnight Blue) : Electronics](https://m.media-amazon.com/images/I/6136ojkck+L._AC_SS450_.jpg)
Amazon.com: Massdrop x Koss Porta Pro X On-Ear Headphones — Noise-Cancelling in-line Microphone, Activate Voice Assistant or Skip Tracks with in-line Remote, Collapsible for Maximum Portability (Midnight Blue) : Electronics
![Wireless version of the classic Koss Porta Pro headphones could be on the way [Updated] | Ars Technica Wireless version of the classic Koss Porta Pro headphones could be on the way [Updated] | Ars Technica](https://cdn.arstechnica.net/wp-content/uploads/2018/04/koss-portapro-wireless-fcc-2-640x504.png)
Wireless version of the classic Koss Porta Pro headphones could be on the way [Updated] | Ars Technica
![Amazon.com: Koss Porta Pro Wireless Bluetooth On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote, Adjustable Headband with Multi-Pivoting Ear Plates, Black : Electronics Amazon.com: Koss Porta Pro Wireless Bluetooth On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote, Adjustable Headband with Multi-Pivoting Ear Plates, Black : Electronics](https://m.media-amazon.com/images/I/6115jbbfnfL._AC_SL1029_.jpg)