backup mobile power for iphone 4/4s 1.Capacity:10400mAh 2.Output :5V,1000mA ... 3.Input:5V,1000mah 4.GW:295g backup mobile power for iphone 4/4sSpecification: Battery cell Li-ion batteryCapacity10400mAhInput5V DC, 750mAOutput5V ... ,easy to carry and portable Super fashional design,can be used as promotional gifts high quality backup mobile power for iphone 4/4s