RemixIconEx.Media.speaker_3

You're seeing just the function speaker_3, go back to RemixIconEx.Media module for more information.
Link to this function

speaker_3(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Media.speaker_3()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M5 5v14h14V5H5zM4 3h16a1 1 0 0 1 1 1v16a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1zm3 5a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm10 0a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm0 10a1 1 0 1 1 0-2 1 1 0 0 1 0 2zM7 18a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm5-3a3 3 0 1 0 0-6 3 3 0 0 0 0 6zm0 2a5 5 0 1 1 0-10 5 5 0 0 1 0 10zm0-4a1 1 0 1 1 0-2 1 1 0 0 1 0 2z" />
</svg>

example usage

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