My idea was to learn about arduino and raspberry pi, and try to make some good stuff like a low budget wi-fi earphones , i'm actually in college so i learned a little bit about how the wi-fi transmitter works in hardware mode , i just need a good base to make/use a wireless protocol (like bluetooth) to make the transmitter/reciever work properly , anyways i live in a fucked up country so i need to keep the budget as low as possible kthx.

just correcting myself , in wi-fi earphones , i mean wireless earphones, sorry.