external power charger Parameters: Input: 5.0V, 1A(max) Output:5V, 1A Cell: Lithium polymer Capacity: 5000mAh Size: 99x72x18 mm Weight: 140g Applications: Mobile phone, and MP3/MP4, PDA, PSP, iphone, And ipad, Features Wide compatible Powerful with long operation time Portable and convenient High dfficiency of power conversion Electricity-saving function User friendly Long cycle life Rapid charge Environmental friendliness Economic Efficiency