Superlux HD667 Professional Drummer Isolation Headphones Wired - 32 Ω Over Ear Headphones with Noise Cancelling, Closed Back, Noise Reduction for Ear Protection Recording Monitoring Guitar Keyboard

There are headphones already that uses these cups (or something similar) on the market. Just get that instead and save yourself some headache and grief unless you're doing for the fun of it. Superlux HD667 Professional Drummer Isolation Headphones Wired - 32 Ω Over Ear Headphones with Noise Cancelling, Closed Back, Noise Reduction for Ear Protection Recording Monitoring Guitar Keyboard https://a.co/d/04CeqQ5C (as an example, available in the states but should be also available world wide)