EZOPower 4-Port 2.1A USB International Travel Charger with International Wall Adapters: * Input voltage: 100V-240V AC * Output voltage: 5V * Output current: 2.1A * Charge up to 4 devices simultaneously * 4 interchangeable wall plugs for the US, UK, Europe and Australia * Wall plugs can be changed easily by pressing the lock/unlock button of the main unit * Eliminates the need for multiple wall chargers and outlets * Short circuit protection * LED charging indication