Beeping Easter eggs are Easter eggs that emit various clicks and noises so that the visually impaired children can easily hunt for Easter eggs. Some beeping Easter eggs make a single, high-pitched sound, while other types of beeping Easter eggs play a melody. Since 2008, the International Association of Bomb Investigators and Technicians (IABTI) have sponsored a nationwide charity campaign in the U.S., building beeping Easter eggs every year for visually impaired children.