... protection case 2 in 1 combo features ,perfect solution for iphone signal problems. 2,Elegant design and use friend Product Specifications ... Output:5V/0.5A6. Charging time:3-5hr1,Compatible with Iphone, ipad ,ipod ,Nokia,Blackberry,HTC etc .2,smart ... integrated5,use iphone original interface ,no additional wiring to charge the battery ,safe and convenient . Portable power supply 1680mAh for IPHONE