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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
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DROP Massdrop x Koss Porta Pro X On-Ear Headphones — Noise-Cancelling in-line Microphone, Activate Voice Assistant or Skip Tracks with in-line Remote, CollapsibleMaximum Portability (Midnight Blue) : Amazon.co.uk: Electronics & Photo
Koss Portapro Wireless Bluetooth Portable: Amazon.co.uk: Electronics & Photo