hardware/drawable-anydpi-v21/ic_speaker_group_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M18.2,1L9.8,1C8.81,1 8,1.81 8,2.8v14.4c0,0.99 0.81,1.79 1.8,1.79l8.4,0.01c0.99,0 1.8,-0.81 1.8,-1.8L20,2.8c0,-0.99 -0.81,-1.8 -1.8,-1.8zM14,3c1.1,0 2,0.89 2,2s-0.9,2 -2,2 -2,-0.89 -2,-2 0.9,-2 2,-2zM14,16.5c-2.21,0 -4,-1.79 -4,-4s1.79,-4 4,-4 4,1.79 4,4 -1.79,4 -4,4z"/>
    <path
        android:fillColor="#FF000000"
        android:pathData="M14,12.5m-2.5,0a2.5,2.5 0,1 1,5 0a2.5,2.5 0,1 1,-5 0"/>
    <path
        android:fillColor="#FF000000"
        android:pathData="M6,5H4v16c0,1.1 0.89,2 2,2h10v-2H6V5z"/>
</vector>