This product will not stay on for more than a minute. When I first turned it on, I charged it fully, turned it on and a minute later it turned off while I was walking to my destination. I turned it on, looked at the sleep settings and turned it off, but it still turns off in the same time frame. Now it's useless junk and I didn't open it until 30 days had passed. DON'T BUY THIS, BUY FLUKE INSTEAD.