With our attachable battery pack, you will never worried you iPhone, iPod touch run out of power,it can be just attached perfect Attachable Battery Pack for iPhone and iPodFeatures: 1,Made for iphone4,3G.3GS,touch  2,Patent safety design: Multi-safety design for overcharging, temperature, short- circuit….. 3,LED light  4,Non-slip grip design     Product Modle:T4      Color :white     Battery:Lithium-polymer battery     Capacity:1500MAH(3.7V)     USB Output voltage:5V     USB Output current:500MA      Packing:Battery x1,data cableX1  Lithium-polymer battery: more stable and safe than Lithium-ion Cupule design to fit and grab your iPhone and iPod,Designed for Iphone, perfect match Get rid of traditional power line. When you are walking, you also can charge your phone and pick up phone calls. Silica gel material, special shape design. Charging Anti-skid designThere is a micro USB port in the side, used for data transmission or charging  Foothold function the side, used for data transmission or charging       

1500mA Attachable Battery Pack plus Sync Cable Made for iphone, iPod touch