USB pigtail

I know nothing about electronics but I bought a flashlight that came with a charging cable. The end of the cable that plugs into the flashlight is a little pin and the end that plugs into the power source appears to be what is called a USB pigtail. It doesn’t fit into my female USB socket in the wall, of course, so how do I charge my new flashlight? Do I need some kind of adapter ? Thanks for any advice! :roll:

Pictures of your cable would be useful for us to help you.