Soldering up an easy beginner electronics kit you can pick up from Temu or Ali Express, this one transmits an FM signal over a short distance you can pick up on a radio.
(Currently out of stock on Temu)
Also available on Ali Express:
https://www.aliexpress.com/item/1005002311533080.html
#JazzTech #electronics #soldering #electronicskit #FMtransmitter #Temu #easyelectronics #radio