RemixIconEx.Media.sound_module

You're seeing just the function sound_module, go back to RemixIconEx.Media module for more information.
Link to this function

sound_module(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Media.sound_module()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M21 18v3h-2v-3h-2v-2h6v2h-2zM5 18v3H3v-3H1v-2h6v2H5zm6-12V3h2v3h2v2H9V6h2zm0 4h2v11h-2V10zm-8 4V3h2v11H3zm16 0V3h2v11h-2z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}