<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:state_checked="true"
        android:drawable="@drawable/ic_microphone"
        />
    <item
        android:state_checked="false"
        android:drawable="@drawable/ic_microphone_off"
        />
</selector>