Quick and easy window cleaning: the innovative WV50 water recovery system picks up dirty water before it drips. No more dripping dirty water when wiping surfaces. The WV 50 cleans windows hygienically without leaving streaks. The WV 50 is cordless which makes it easy to use and extremely versatile. Clean up to 40-60m² (45 windows approx) per battery charge.Suitable for different surfaces:windows roof-lightstiles e.g. at the wallmirrors e.g. in the bathroomglass surfaces e.g. glass door table shower cabinsother flat surfacesFeatures and Benefits:Electrical water suction:- No dripping down of dirty water- No contact with dirty water and therefore hygienic working- Optimal streak-free result