Tyzon 3 V CR2430 lithium battery, 2-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: lithium button cell
Voltage: 3 V
Size: CR2430
Free of mercury, cadmium and lead
Pack of 2.