I don’t think I remember the last time I used a walkie-talkie, and with the introduction of smartphones, I’m not sure when I’ll ever need one. However, that doesn’t make them useless by any means. If you want to make your own pair of walkie-talkies using an ESP32, this project may just be what you’re looking for, and best of all, it manages to avoid the need for radio licensing using a smart trick.