*Backup battery capacity 10000mAh *2-pin USB charging connector *Maximum discharge current of 2.1A *The material is durable aluminum. *LCD Battery Percentage Screen *Battery Capacity: 10000mAh *Voltage Input: DC5V 2.1A (Max) *Output: DC5V 2.1A (Max) *Dimension: 139 x 47.3 x 19.5mm