carejoy vacuum robot cleaner free your life Intelligent planning path, memory family layout, cleaning every corner; WIFI connect mobile phone, Timing boot, Automatic Cleaning for Home and Office, Automatic charging 5200mAH Long-life Li-Battery, it can cleaning 250 square meters of the environment; 96mm Slim design enable this Robot Vacuum Cleaner working in the narrow space Anti-Collision Detection to Protect the Robot Itself and Furniture; Anti-falling Detection and Turning Back In Front of 8cm Height Cliff; Tri-axis Gyroscope Accelerator to Grasp its Moving Attitude