There is a head with two bandages placed over their mouth diagonally going opposite directions. Their eyes are wide open, we can't see above their forehead or below their neck.
This Silence icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.