I linked a radio that is affordable and designed to use AAA batteries. It is widely recommended. I find this to be an operable solution for recreational kayaking.
*** here the one i recommend:
I’m just trying to help OP. If you want to argue with strangers, you might enjoy facebook.
** there a difference between arguing and been disrespectful. Accusing someone of disinformation get into this category. Helping others is all i do. But i feel compelled to response when little know it all accuse me especially when they are pretty wrong. Sorry i don’t do Facebook, i got better things to do.