Karcher WV 50 Window Vac, Streak-Free Shine The Karcher Promise: Cleaner. Quicker. Best-in-class cleaning performance. The PowerSqueegee leaves any surface squeaky clean. Eliminates streaks and drips while cleaning windows and other flat surfaces. Saves effort, time, and money. Light weight and easy to use. Works indoors and outdoors Simply apply your favorite cleaner and vacuum it away with the PowerSqueegee for a beautiful, streak-free shine Eliminates the need and expense of paper towels while delivering better cleaning results Cordless kit and maintenance-free. Long lasting lithium-ion battery Protected by industry-leading Rapid Exchange Program warranty