In a recent article in Elektor magazine, [Clemens Valens] describes the construction and software for an ESP32 walkie-talkie system that uses ESP-NOW for the wireless connection between units ...

FRS radios are good for short to mid-range ... where results were greatly foreshortened. While using a walkie-talkie doesn’t require much of the etiquette of amateur radio (or the fun slang ...

You can even turn the humble handheld device into a working walkie talkie. The build relies on adding a SA868 transceiver module to the ESPBoy, along with a microphone, speaker, audio amplifier ...