The mophie® Power Boost 20,000 mAh Power Bank has a rechargeable lithium polymer battery (74Wh) that can charge three electronic devices at the same time with one Type-C and dual USB-A output ports. Included USB-A-to-Type-C cable. Packaged in a premium gift box. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.