@sumudu In the US, there was an entire culture that sprang up in the mid 1970s when those Citizen's Band radios became available. So many people had them in their cars and homes. They use the same frequencies as walkie talkies in most cases (Assuming you had that band of crystal plugged in) I had a pair of Midland Walkie Talkies with four channels. Wish I still had them.
// @matigo