Input : 5V/2A Ouput : 5V/2.4A Input USB Type : Micro USB Output USB Type : USB Capacity: 3000mAh/4000mAh/5000mAh/6000mAh/6800mAh (KR/JP Cells) Power Conversion Rate : 70-85% Dimension : 72.7*41.2*30.2mm Product Weight : <131g