Our infrared trash cans are Patented worldwide including United States and are CE certified. * Patented Worldwide including United States * CE Certified * ISO Standard Tested With the infrared sensor the lid will automatically open once you are within 10 inches from the sensor and close for you 6 seconds later. Now you don&＃039;t have to touch the trash can while throwing away anything again. Who doesn&＃039;t like things that are convenient and sanitary? With our infrared trash can you can have both! So,"WAVE GOODBYE TO WASTE" and say hello to the new 21st century trash can. Our trash cans come in sizes from 2 - 21 gallons to meet all your home, office, restaurant, and buildings needs. The base of the can is made of high grade 304 stainless steel and lid is ABS plastic. Battery life is guaranteed for 6 months and when using Duracell or Enegizer can last up to a year or 10,000 opening and closing of the lid.