Y2K Vintage Tamagotchi Connection v3 Black Pink Keychain (needs new battery)

Vintage Tamagotchi Connection v3 from the 2000s, in a black and hot pink color scheme. Needs new battery. I have not opened it or tested it with a working battery, purchase is AT YOUR OWN RISK if it does not function with the replacement battery. To my memory there were no known issues, battery just died with time. Has an infrared sensor on the top, to communicate with other similar Tamagotchi toys (again, has not been recently tested). Also has a keychain. Collectible item for those who collect toys from this era.