Toucless Trashcan Nx has the most upto date sensor technology. Debris within 6 inches or also your hands would trigger the can to open. The lid will remain open as long as your hand or debris stay within hte range. After a 3 second, delay to when your hand moves away from the sensor the lid will close. Pretty sweet, I can tell you that. No need to step on a pedal or touch a dirty can.