Panasonic CR2032 Battery is used for: Remote Controls, Heart Rate Monitor,Watches, Cameras, Calculators, Car Security Alarm, Keyless Car Remotes, Organizers, Glucometer, Photo Micro Lites, Computer Equipment (memory backup battery) CMOS, Motherboards, Garage Door Controls, Toys, Communication Equipment, PocketStations, AbTronics, Dreamcast VMUs, data pack for video cameras, and other devices that requires this battery size