2800mAh Portable Power for iPhone, iPod Touch, iPod,

2800mAh Portable Charge Charge your iDevice on the Go. iPhone 4 iPhone 3Gs iPod Touch (all generations) iPod Specifications: Capacity: 2800mAh Input voltage: 5.5V+/-0.5V Output voltage: 5.5V+/-0.5V Input current: 500mA max Output current: 800mA max Dimension: 67*62*15mm Weight: 48G