Make your own very crude Walkie-talkie with an Arduino - YouTube
Arduino RF and audio - Project Guidance - Arduino Forum
Long Range Arduino Based Walkie Talkie using nRF24L01
How to Make Walkie Talkie Using Arduino | Hackaday.io
Talkie-walkie Tout-en-un Arduino Uno Nicerf, Module 100 En Sa828-u-400 Mhz Uhf, Pour La Voix, L'interphone Et Le Smartphone, 480 Pièces - Pièces De Rechange Et Accessoires - AliExpress
Arduino Telsiz Walkie Talkie – Ana Sayfa
Long Range Arduino Based Walkie Talkie using nRF24L01 - YouTube
How to Make Wireless Walkie Talkie Using Arduino at Home / 1.5 K.M Range / Optional range 15 km - YouTube
Talkie Walkie Duino Wireless Open source pour Arduino - Radioamateurs France
Long Range Arduino Based Walkie Talkie using nRF24L01
2.4GHz arduino walkie talkie Resources - EasyEDA
Arduino walkie talkie with nRF24L01 – Cassiopeia Ltd