High-quality ANSMANN lithium batteries in Micro AAA size with a voltage of 1.5 V and a capacity of 500 mAh. Ideally suited for use in modern electronic toys, flashlights, radios, measuring devices, remote controls, wireless mice and keyboards, game controllers, wall clocks, weather stations, and more. Particularly safe due to the integrated protection circuitry that guards against overcharging, overload, short circuits, and deep discharge.