Envie AAA 800 2PL Infinite Ready to Use Rechargeable Battery is a set of 2 AAA Sized batteries. The Infinite ranges of batteries are similar to Alkaline batteries in the sense that they can be used straight from the pack. Moreover these batteries are rechargeable and can be recharged up to 1000 times. These batteries have low self discharge and can retain charge even after one year, if not used in between. The AAA Sized battery is compatible with a large number of devices including remote controls, electronic toys, cameras, flashlights, torches and various other devices.