The LogiLink Ni-MH rechargeable batteries are perfect for MP3 players, cameras, toys or other household device with reliable and long lasting energy.Ni-MH rechargeable technology ensures power for high drain devices 0% Mercury and Cadmium, free from harmful heavy metals Voltage: 1.2V Capacity: 1000 mAh Shelf life: Up to 5 years Recharge up to 500 times The batteries are pre-charged and ready to use right out of the pack Package content: 4x AAA Ni-MH rechargeable batteries