Pro Charger with 4 Aa Rechargeable Batteries

Wall charger recharges AA or AAA rechargeable batteries, up to four at a time. A series of beeps indicate when charging starts and when batteries are fully charged, maximizing battery performance and ensuring a full charge every time. A second series of beeps indicate that the battery in the charger has reached its full charge. Battery Type: NiMH; Battery Size: AA; AAA; Charge Time: 3 hrs.