Thank you for viewing. This is a Hello Kitty mini calculator keychain released in 1997. It has been stored in a box in a dark place. As it is a 28-year-old item, there are small scratches on the surface, but the keychain part is not discolored and is in good condition. Looking at the back, it seems possible to open the battery compartment, so battery replacement may be possible. I don't have a screwdriver at home that fits these screws, so I haven't been able to confirm the operation. Please purchase if you understand and agree that this is a long-term storage item. I think it's a rare item, although it's quite old. Item/Type...Keychain ※Please refrain from purchasing if you are nervous about home storage. ※There may be small stains and scratches due to aging. ※Please judge the condition from the photos and purchase only if you are satisfied. ※All accessories are shown in the photos.