Promotional Power Bank, Magma Combo Hand Warmer and Power Bank - 4000mAh & UL Certified, Powerful dual sided hand warmer and 4000mAh power bank in one Hand warmer heats to maximum 130 degrees Fahrenheit Output: 5V/2A Input: 5V/2A Aluminum case Charging cable included UL Certified Lithium-Ion Battery ... #EPB-MC18 $16.40/each.