UL Listed (UL File #E485248, Model #AST-MP473XXX). 2500 mAh Lithium Ion Grade A Non-Recycled Battery. Red LED Indicator Light When Charging. Stainless Steel And Polyurethane Case. Magnetic Closure. Features A USB Output And Micro USB Input (Cord Included). Output: 5 Volts/1.5 Amp. Charges Most Phones, MP3 Players And More!. Requires Your Phone’s Charging Cord To Charge Your Device.