First published at 03:11 UTC on November 16th, 2017.
Grado Headband: Buy a cheap Grado, like the SR60/SR80, or consider used. If you already own a Grado, you can call the company and purchase an extra.
Sony 7506 Headband: goo.gl/cwS49A
Sony 7502 also works, but I have not seen a link for the ...