Stainless Steel Outer And Inner | Powder Coated Finish | Double Wall Construction For Insulation Of Hot Or Cold Liquids | Screw-On, Spill-Resistant Lid | Wide Mouth Opening | Easy Carry Handle | Meets FDA Requirements | BPA Free | Hand Wash Recommended | Spot Clean Base | UL Listed (UL File #MH 60484, Model SP0413) | Charge Qi Enabled Devices Wirelessly By Placing Compatible Device On Top Of Charging Pad | Features A Micro USB Input (Cord Included) | Output: 5 Volts/2.1 Amps | 3600 mAh Lithium Ion Grade A Non-Recycled Battery | Indicator Light | Please Note That Some Computer And Laptop USB Ports May Not Supply Enough Power To Charge A Device Using This Charging Pad.