Speaker

<svg class="bi bi-speaker" width="1em" height="1em" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
  <path d="M9 4a1 1 0 1 1-2 0 1 1 0 0 1 2 0zm-2.5 6.5a1.5 1.5 0 1 1 3 0 1.5 1.5 0 0 1-3 0z"/>
  <path fill-rule="evenodd" d="M4 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H4zm6 4a2 2 0 1 1-4 0 2 2 0 0 1 4 0zM8 7a3.5 3.5 0 1 0 0 7 3.5 3.5 0 0 0 0-7z"/>
</svg>