Robot Vacuum Cleaner For Home Sweeping Dust Sterilize 4000PA Cyclone Suction Washing Mop Wireless Smart Robot Vacuum Cleaner Description: Working decibel: 55DB Working voltage: 3.7V Battery capacity: 1200mAh Product weight: 550g Charging time: 3h Product size: 22.5*22.5*5cm Product color: white, black Working hours: 90min Cleaning route: random Operation mode: mechanical Power supply mode: USB Timing function: no timing Rated voltage: 3.7V Rated power: 5W Applicable area: 90-120 square meters With remote control: No LCD display: none Is there a timed appointment function: No Collision protection: mechanical collision Suction power: 1000~1499Pa Specifications: 1. Low-noise design, no noise troubles, a complete set of systems are highly efficient, and reduce noise while cleaning. 2. Optimize the route logic, turn quickly, bypass the cleaning of the chair legs, and effectively improve the cleaning strength of the cleaning. 3. Applicable floor: marble, ceramic tile, wooden floor, etc., intelligently turn around when encountering obstacles on the flat floor. 4. Only 5cm high, slim body, shuttle freely, the body's improved performance enters the sofa bottom and the bottom of the bed to clean without omission.