Sony rechargeable AAA batteries-2 Pack-High power rechargeable nickel-metal hydride (NiMH)-Outstanding performance and power-Last up to 4 times longer than Alkaline-Ideal for all devices-High capacity-900 mAH capacity-Recommended for high drain hardware devices used frequently in a short period of time-Can be recharged in any Sony NiMH charger- SYNHAAAB2E