Bluetooth Talkie is an Android application by developer ShashaVS that simulates the experience of a walkie-talkie. The app works via Bluetooth adapter on your device and allows for one-way communication through voice or text messages. This app version supports up to three connections to one device.

The app features a quick search and connect function, multiple connections, simple and intuitive interface, audio visualization, and various ways to use the application. Please note that the working distance depends on the device model and external conditions of use.

To use the app, install Bluetooth Talkie on devices you want to use as walkie-talkies and turn on the Bluetooth adapter. Then, select companions from the list of found devices in the Devices tab and click on the button with the number of connections. The devices will go into waiting mode after successful connection, and the app will work according to the rule: while one speaks (transmission - TX), others listen (reception - RX).

Overall, Bluetooth Talkie is a useful app for those looking for a walkie-talkie experience on their Android devices. It is free to use and requires no internet connection.