The package has rechargeable batteries utilizing Eneloop Pro technology, delivering 2500mAh of long lasting performance for high power applications. Eneloop Pro batteries are the perfect choice for powering high current consuming devices such as cordless phones, LED flashlights, photo strobe flash units, wireless keyboards / mice, game controllers, radio controlled toys and thousands of other battery operated products. Eneloop Pro batteries are engineered to excel in extreme conditions where high power performance is needed.