sorry every my level english is bad .
my ideas is make a touch sensor , but it use suond effect ,
went a have sound sensor , i think back cover it by wax to prevent from sound , i have touch sensor , went i attachech to what i want protect
but i have not experience
who body can hepl me
THANK
I think you need to describe it in your own language, what it is that you want, and then use translate.google.com to translate to english.
This will probably give something more meaningful.
// Per.