Uniross UCU004A USB Compact Multi Charger with 4x AA 2100 Batteries & USB Charging: FeaturesBattery TechnologyNickel Metal Hydride (NiMH)CompatibilityAA, AAA, 9V BlockCharging IndicationLED LightCharging Slots4 *(9V 2 Pieces)Number of Channels6Input SourceMicro-USB: 5VDC 1AUSB-C: 5VDC 2A