Walkie Talkie (SMS and voice)

Walkie Talkie has 2 main features:

- SMS: Messages can be sent between 2 walkie-talkie via Bluetooth. 100% guaranteed works on all devices.

- Voice chat: Sounds are recorded via microphone, then sent to the other's walkie talkie via Bluetooth, then they are played via inner speaker (earphone recommended). Newer phones will make better sound. Some old phones create unexpected noise. I am unable to try all the phones. Sorry if the noise happens in your phones. I will try to fix this issue when I learn more about audio processing.