The Hutt W8 Window Cleaner Robot is a robotic vacuum designed specifically for cleaning glass and marble surfaces. With a powerful suction power of 3800Pa and dual water spray nozzles, this robot effectively removes dirt, grime, and debris from windows and other smooth surfaces. The 80ml water tank capacity ensures long-lasting cleaning performance without the need for frequent refilling. Perfect for maintaining a spotless and streak-free finish on glass surfaces in your home.