Ebay offers Roborock Q Revo Robot Vacuum for $399.99 (reg. $499.99) after code free shipping.

Apply Code: BRANDNEW20

Product Description:
30% Faster Charging, 5500Pa Extreme Suction, Alexa&Google Assistant and Siri Shortcuts Supported, Auto Mop Lifting, Detachable Dock Base, Off-Peak Charging Supported, Only support 2.4GHz Wi-Fi. 5GHz is not supported., PreciSense® LiDAR Navigation, Reactive Tech Obstacle Avoidance, Self-Drying, Self-Emptying, Self-Refilling, Self-Washing, Smart Suggestions for No-Go Zones