I'm totally with you on needing quiet when working from home. My much more economical solution is a pair of industrial earmuffs with earbuds inside if I want sound. In particular mine are the 3M Peltor X5A: https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-...

I've had mine 7 years and swear by them.