ECOVACS WINBOT W2 PRO Omni Portable Window Cleaning Robot – Flexible, Efficient, and Safe with Dual Power Modes for Ultimate Flexibility：Battery Mode: Ideal for outlets-free areas like balconies or bathrooms, offering 110 minutes of cleaning time (covers 55m²). Plugged-In Mode: Perfect for large windows with accessible outlets, allowing continuous cleaning while preserving battery life. 6-in-1 Multifunction Station: An all-in-one solution for easy storage, charging, stabilization, and control – simplifying your window cleaning tasks. 3 Nozzles Wide-Angle Spray: Upgraded technology delivers 100% increased water pressure and 90% longer functionality, removing dirt in a single pass for spotless windows. Intelligent Path Planning: Powered by a brushless motor and WIN-SLAM 4.0, this robot boosts cleaning efficiency by 30%, adapts to all window types, and ensures smooth turns and precise edge detection. 12-Stage Safety Protection: With a robust 12-stage protection system and insurance coverage, your safety and peace of mind are guaranteed.