Unforgetablet by designer An Sang Hyun, is another functional gadget that utilizes bar codes that is used on almost all the food people buy from supermarket and warns consumers about their expiry date by storing all their information before placing them in the refrigerator. All the food and beverages are registered along with the expiry date in the device before they are kept into the refrigerator; even users can set expiry dates for certain foods if they want. The device remains fixed on the refrigerator, showing necessary information on its black, glossy screen, and alarms whenever a food reaches to its expiry date.