With 2 spray points, the wipe has just the right amount of moisture, and the metal spray pad delivers a precise 0.1ml of water at a time. 2800Pa high suction power recognises glass and attracts it as soon as it is placed, delivering strong downward pressure to wipe away stains on a wide range of exterior materials. Intelligent water spray, spray water while wiping, spray water after wiping, empty water tank can also be used for dry wiping normally After repeated comparisons, we found that the square machine leaks less and covers more. It also cleans exterior wall windbreak corners and other places that are hard to reach by hand. It also cleans exterior wall corners. The corners don't hurt the edges, and the corners are bearing corners, which makes it safer when encountering window corners and won't damage the corners., Manufacturer: TRDEWR