General Spec Model MP-5000 Battery Type Li-polymer battery Color silver Capacity 5000mAh/ 18.5Wh Input 5.0V/1.0A (Max) Output 2*USB 5V/1.0A Cycle Life 500 times Compatibility any device of 5V can be recharged anywhere with the battery, such as iPhone 4/ iPad/ Mobile Phone/ iPod/ MP3 Other USB cables and adapters Features Lightweight,thin design. Universal portable external battery. Can know the remain power any time with LED indicator lights. Any device of 5V can be recharged anywhere with the battery, such as iPhone 4/ iPad/ Mobile Phone/ iPod/ MP3. Protection for overcharge, overdischarge, overload and short circuit. Full compatibility, high capacity, easy operation, high security.