Product details: - LDS laser navigation system for accurate mapping and navigation - 3D obstacle avoidance for safe navigation - Dual-pad pressure mopping for better stain removal - 4000Pa powerful suction fan blower for strong suction power - 5200mAh nominal battery capacity for extended cleaning time - Supports APP control for easy operation through your smartphone - Supports voice control through Google and Alexa for hands-free operation. App name: Mi Home Warranty: 1 year.