UL Listed (UL File #MH60964, Model #1508). 1500 mAh Lithium Polymer Grade A Non-Recycled Battery. LED Indicator. Features A USB Output And Micro USB Input (Cord Included). Output: 5 Volts/1 Amp. Charges Most Phones, MP3 Players And More!. Requires Your Phone’s Charging Cord To Charge Your Device.