Sensor Trash Can: Our motion sensor trash can uses advanced automatic sensing technology, The lid stays open if your hands stay around the infrared motion sensor, which provides a comfortable user experience. When leaving 5 seconds, the lid will automatically close Lid. In cases that You want the lid to stay open, just gently touching open button on the left. Hands-free Operation Kitchen Trash Can: Just the motion of your hand opens the lids automatically! Avoid exposure to the illness-causing dirty that live on trash can surfaces; it's the hygienic and convenient choice. Advanced Technology: Delay sensing technology preserves battery life and prevents any unnecessary opening from pets, children, or walking by. Soft closing function for longivity of product life. Easy To Clean & Isolate Odors：Cover Trash can with lid has a smooth surface and is easy to clean. While the sealed exterior and infrared technology ensures odor is contained. Battery Operated Automatic Trash Can: No pesky cords necessary. Requires 4 AA batteries (not included). Use 13 gallon garbage bags.