These 2-in-1 stainless steel touchless trashcans are designed and engineered by Nine Stars the world’s first legal patent holder. With one kitchen size and one bathroom size, you can use them almost any place you want, such as kitchen, office, bathroom, dorm room, or a kid’s room. These two trashcan use the most advance sensor technology can be found in all Nine Stars trashcans. As your hand or debris within ten inches and 130 degree angle from the infrared sensor, the lid will automatically open. The lid will remain open if debris or hand remains within the range of the infrared sensor. Three seconds after your hand moves away from the lid, it closes automatically. Energy Saving technology keeps battery life 20Percentlonger in normal daily usage.