https://www.amazon.com/gp/product/B09FSTSNH4/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 Id recommend getting a pair with a remote or bluetooth, or if you are hand, you can make a cable extender that goes all the way up your pants Other wise to turn them off you will need to be able to pull your pants cuffs up or pull your pants pretty much off to turn them on or off.
I wear long johns and these socks then my armored jeans (slimg fit) over. thats been enough for my legs to stay relatively comfortable for 30-40 mins, haven't done longer. Usually its my hands are the limiting factor at this point.