Capacity: 7500mAh Aluminum material LED indicator charger for 3-4hours Specifications: Mobile Phone Battery ChargerBattery Capacity: 7500mAhOutput Voltage(USB port ) : 5V, 1A ; 5V, 2.1A Input Voltage: 5VInput Current: 1AMaterial: metalLed display shows percentage of processvarious colors for your choices mobile phone travel charger