The Hobot 298 is a robot that flawlessly cleans your windows to perfection
Amazon.com: Tyroler Bright Tools The Glider D-3 Magnetic Window Cleaner for Double Glazed Windows Fits 0.8"-1.1" Window Thickness. Glass Cleaner : Health & Household
Amazon.com: Window Detergent for HOBOT-298/388 : Health & Household
Amazon.com - HOBOT-2S Window Cleaning Automatic Smart Robot with Dual Ultrasonic Water Spray and Control via Smartphone or Remote -