Hacking Disney Walkie Talkies into QRP ham radios.
SOCORAD32: A hackable, open source, ESP32 amateur radio board with walkie- talkie functionality and data communication - Open Electronics - Open Electronics
Cheapest (~10-15USD/unit) Wireless Intercom or Simple USB Powered Walkie Talkie Hack : 3 Steps - Instructables
Receive and transmit clear messages with these reliable walkie-talkies
ANYSECU 4G-W2PLUS N60 WCDMA/GSM Walkie Talkie LTE FDD Internet Mobile Radio IP Network PTT Radio Work with Zello/Real PTT Fast Talk
Walkie Talkie | Hackaday
How to Hack a transistor radio to hear Air Traffic Control « Hacks, Mods & Circuitry :: Gadget Hacks
Improving Small Walkie Talkie Range : 12 Steps - Instructables