Tamagotchi. Both have been tested and confirmed to be working. The green one works without any problems. The yellow one's buttons did not respond. Also, there is a line on the screen (see photo 9). Please purchase only if you understand and accept the above conditions. Batteries are not included. *Please check the photos for the condition. If you have any concerns or need close-up photos, please feel free to ask. *Items are inspected by an amateur, so there may be oversights. Please refrain from purchasing if you are sensitive to details. *I have stored them in a bag in a dark place, but there may be signs of aging and dirt. These are old items, so please purchase only if you understand and accept this. *The shipping method may be changed from Yuu Yuu Mercari to Rakuraku Mercari.