1. Cordless window vacuum: The window vacuum cleaner features strong suction power (2.0 KPa) and can spray, wipe, and vacuum water, allowing you to effortlessly and efficiently remove dirty water without leaving streaks or scratches on the glass. 2. 30 minute runtime: Equipped with a built in 2200 mAh battery, this cordless window vacuum cleaner can run continuously for approximately 30 minutes on a full charge, eliminating the need for frequent recharging during window cleaning. 3. 150 mL removable water tank: The detachable water tank is easy to open and empty quickly. With a 150 mL capacity, you can focus on cleaning without constantly stopping to empty it. 4. Easy to use: This rechargeable window vacuum cleaner is wireless and lightweight (approx. 1.5 lbs), making it comfortable to hold and clean without causing hand fatigue. It comes with a spray bottle and a microfiber cloth for effortless cleaning.