Janvvoo Robot Vacuum Cleaner, Powerful Suction Self-Charging Ultra Quiet, Auto Cleaning Carpet Hardwood Floor Tiled Floor Simple Home Cleaning: The remote control is easy to use at the touch of a button, the wireless robot vacuum cleaner line plan performs a clean dust identification system, which can quickly identify the dust and garbage on tiles, hardwood floors and carpets, and can effectively clean the work Automatic Docking and Charging: Ultrasonic sensing technology, when the floor cleaning time is up to 90 minutes, when the power is lower than 20%, the robot automatically returns to the charging stand for charging Strong Cleaning Effect: The black electric vacuum robot is 3.15-inch thick and can be cleaned under most furniture, easily absorbing dust, pet hair and large pieces Obstacle Detection Technology: With its anti-collision sensors and soft cushion bumpers, the robotic vacuum cleaner can avoid obstacles and protect your furniture Stair Safety Technology: Robotic vacuums use a drop-proof sensor to move safely at home, cleaning the stairs around, without the risk of falling