Advanced Safety Protection: Equipped with four sets of high-precision optocoupler sensors for edge detection, ensuring sensitive and safe operation. Powerful Suction: Delivers 2500-3000Pa of suction power, keeping the device firmly attached to surfaces. UPS Power-off Protection: Ensures continued operation even during a power outage, thanks to its UPS system. Secure Attachment: Features a floating cleaning pad plate that maintains the robot's stable attachment to glass surfaces. Extended Reach: Comes with a 6.2m power cord and extension cable for comprehensive and hassle-free cleaning. The Liectroux YW209 Robot Window Vacuum Cleaner is a cutting-edge solution for effortless and thorough window cleaning. Designed with multiple safety features, including high-precision optocoupler sensors and professional-grade safety ropes, this robot ensures safe and effective cleaning even in challenging situations. With a powerful 2500-3000Pa suction, the YW209 remains securely attached to glass surfaces, while the floating cleaning pad ensures consistent contact. The UPS power-off protection guarantees uninterrupted operation, and the extended 6.2m power cord provides the flexibility needed for larger windows or higher floors. Ideal for homes, this robot offers a combination of advanced technology and practical design for a spotless finish every time.