This icon is a part of a collection of Cosinus flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
There are two straight lines, one is horizontal and the other is vertical. The vertical line is on the far left of the horizontal line touching it, the horizontal line is in the middle of the vertical line. The wave starts from the top of the vertical line, then goes through the horizontal until it reaches the bottom of the vertical and then back up.