FEATURES: LIGHT WEIGHT AND THIN DESIGN WITH METAL SHELL IT CAN CHARGE BY SUNSHINE OR COMPUTER OR WALL OUTLET. UNIVERSAL PORTABLE EXTERNAL BATTERYHANDSOME STYLE HIGH CAPACITY AND HIGH COMPATIBLE COMPATIBLE WITH IPAD, IPHONE, NOKIA, SAMSUNG, MOTOROLA, MP3, MP4, ETC  LED LIGHTSPECIFICATION: CAPACITY: 30000MAH CELL TYPE: LI-POLYMER BATTERY OUTPUT2: 5V, 2.1A MAX PACKAGE INCLUDED: 1 X30000MAH ...