Pushing the headphone covers into the remaining gap between felt pad and the er muff padding … this closes the gap and secures both driver and felt pad tigthly. [On-Set Audio Monitoring: How to make $30 DIY Passive Noise Canceling Headphones]

Pushing the headphone covers into the remaining gap between felt pad and the er muff padding ... this closes the gap and secures both driver and felt pad tigthly.