Intelligent Drop Avoidance Induction :IR sensors at the bottom detect the high gaps, and it will avoid the obstacles and change direction automatically by inductor Intelligent electronic control large water tank: intelligent control of water output, uniform water seepage and wet drag; three water volume control, clean mode for environment, protect home floor Automatically Clean, Dock & Recharge: Vacuum robot matched with uniquely designed powerful battery could automatically clean up to 150 minutes, would automatically go back to charging base to recharge when battery is low Voice Prompts: Voice control liberates the hands, liberates the remote control, liberates the mobile phone APP, and the voice prompts the opening to accurately "report" the working state, real-time dynamic, saving time and worry After sales: If you have any questions about our vacuum cleaners, please feel free to contact us, we will serve you within 24 hours!