With the Kärcher WV5 Versitality, you can clean windows, glass tables, mirrors, and showers. This window cleaner includes an extra microfiber cloth and a small suction brush. This way, you can clean more surfaces and cleaning smaller mirrors or windows is easy. With a fully-charged battery, you can use the window cleaner up to 35 minutes. This doesn't seem like a long time, but you can clean windows quickly. It's possible to clean 5 windows and a few mirrors in half an hour.