For streak-free windows: Kärcher KWI 1 Plus. Three times faster. With a Kärcher window vacuum, cleaning windows is three times quicker than by hand. No streaks. Streak-free cleanliness thanks to a high-quality squeegee and innovative suction function. No drips. The window vacuums quickly and reliably suck water off the glass - without dripping dirty water. Features: Suction width: 25 cm, cleaning performance: up to 105 m², lithium-ion battery with a runtime of up to 25 minutes, extra-large tank opening, suction possible at an angle and overhead, includes spray bottle with microfiber cloth.