![Koss Porta Pro Double-Sided Communication Headset with Microphone Electret Flexible Handsfree Design Foldable Design TRRS Plug Wired 3.5 mm Black : Amazon.co.uk: Electronics & Photo Koss Porta Pro Double-Sided Communication Headset with Microphone Electret Flexible Handsfree Design Foldable Design TRRS Plug Wired 3.5 mm Black : Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/I/617PvbzCjaS._AC_UF1000,1000_QL80_.jpg)
Koss Porta Pro Double-Sided Communication Headset with Microphone Electret Flexible Handsfree Design Foldable Design TRRS Plug Wired 3.5 mm Black : Amazon.co.uk: Electronics & Photo
![My new Koss porta pro headphones sound extremely muffled. Music sounds okay but any sort of video or movie sounds like I'm listening to it through a wall. Are they supposed to My new Koss porta pro headphones sound extremely muffled. Music sounds okay but any sort of video or movie sounds like I'm listening to it through a wall. Are they supposed to](https://preview.redd.it/my-new-koss-porta-pro-headphones-sound-extremely-muffled-v0-gqgzb3kdrh8c1.jpeg?auto=webp&s=2cfeece5524899270d6600f6b522d4a56ca0b86b)
My new Koss porta pro headphones sound extremely muffled. Music sounds okay but any sort of video or movie sounds like I'm listening to it through a wall. Are they supposed to
![Koss Porta Pro Utility On-Ear Headphones, Detachable Interchangeable Cord System, Collapsible Design, Stealth Grey: Amazon.co.uk: Electronics & Photo Koss Porta Pro Utility On-Ear Headphones, Detachable Interchangeable Cord System, Collapsible Design, Stealth Grey: Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/I/71dsSY-bqqL.jpg)
Koss Porta Pro Utility On-Ear Headphones, Detachable Interchangeable Cord System, Collapsible Design, Stealth Grey: Amazon.co.uk: Electronics & Photo
![Koss Porta Pro Limited Edition Rhythm Beige Headphones with Microphone, Volume Control, and Remote : Amazon.co.uk: Electronics & Photo Koss Porta Pro Limited Edition Rhythm Beige Headphones with Microphone, Volume Control, and Remote : Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/I/61axmdZG97L.jpg)