The Edge 2,000 Power Bank is a rechargeable lithium ion Grade A battery device is enough to charge smartphones, MP3 players and more. The reusable power bank charges via USB cable (included) which can recharge the battery backup or be used to charge devices with a micro-USB input such as Android smartphones from Samsung®, Motorola®, HTC®, Nokia®, and others. USB to Micro USB charging cable is included. Input: 5V/1000mA; Output: 5V/1000mA.