Answer:
Hey!
Well...the law is called Halacha...
It forbade the Jewish Community from wearing the Hearing Aids on their "day of rest" (the Shabbat)
Step-by-step explanation:
Makeh Bepatish meaning... (The prohibition of completing the formation of an object on Shabbat) = so you cannot "add anything to an object...
Boneh meaning... (The prohibition of building on Shabbat) = so you cannot "build" (assemble anything, including the Hearing Aid)
Hope this helps!