Tyzon 1.5 V LR44/AG13 alkaline batteries, 4-pack

A button cell battery is a small flat battery often used in small electronic devices such as watches, calculators, electronic parking discs, speedometers/traffic alarms, electronic toys, heart rate monitors, car keys and small remote controls. They are called button cell batteries because they are typically about the same size and shape as a button.
Battery type: alkaline button cell
Voltage: 1.5 V
Size: LR44/AG13
Free of mercury, cadmium and lead

Pack of 4.