Function: music/sound, not albatross
Specification: 9 cm
Power supply: button battery
Remember the electronic chicken? Egg-shaped toys, released in the United States in 1997, are electronic miniature pets for children to feed and take care of. The players "hatch" and name their Tamagotchi, and fill the pet's hunger watch by pressing the button to clean up its faeces and play with it. Tamagotchis can properly take care of adults. If neglected, it will die.
Tamagotchi's toys are basically the same, although the eggs are a little smaller than they used to be. There's nothing we need more than an electronic pet to keep us away from our daily work...