(UL File #MH61064, XRN Series) Aluminum alloy case (laser engraved) 2200 mAh Underwriters Laboratories (UL) Listed lithium ion Power Bank Charger recharges your cell and mobile phone battery when it's running low. It recharges using a micro USB input cable (included), and it charges your cell phone through its USB output port using your phone's own charging cable (not included). Guaranteed up to 500 charges. Output is 5 Volts/1 Amp; complete instructions included. UL File #MH61064, XRN Series "“ The Power Bank and all of its components, standards and performance comply with the rigorous standards of the UL, the premier product safety, certification and testing laboratory in the World. For Power bank FAQ's Click Here