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README.md

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 # Android Codec2 Walkie-Talkie
 Android KISS Bluetooth modem client for Amateur Radio digital voice communication by using open source Codec2.
+
+# Introduction
+This Android application is a digital voice frontend for your radio. It connects to your radio KISS Bluetooth modem, sends and receives Codec2 audio frames, which are encapsulated inside KISS frames. 
+
+# Features
+- PTT button, push and talk, encoded speech will be transmitted to the modem
+- Bluetooth connectivity on startup, lists paired devices, so you can choose your modem and connect
+- Voice codec2 mode selection, which allows you to select various codec2 modes from 450 up to 3200 bps.
+- Codec2 loopback mode, which records and plays your recorded voice back to test and evaluate different modes
+
+# Related Projects
+- Codec2 codec: https://github.com/drowe67/codec2
+- Android Codec2 wrapper code: https://github.com/UstadMobile/Codec2-Android