The karcher wv 2 window vac is 10 shorter and lighter than the original window vac but now has a 25 minute battery run time cleaning up to 75m per charge the wv 2 sucks surfaces completely dry streak free and makes it easier than ever to achieve crystal clear windows in an instant its also perfect for removing liquid from mirrors shower screens tiles condensation from windows and even spills from floors and worktops comes with battery charger lithium ion battery spray bottle with micro fibre w