There is a circle with the letter B inside of it. The letter B has four tiny rectangles (all equal size), two on top of it and two on the bottom of it. By having these rectangles attached to the letter B, the letter appears to look like the US dollar sign - - $.
Related to Bitcoin Icon
Related icons are the icons with matching tags, as well as all finance icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors