Dual USB Port 2.1A Travel Wall Charger For Apple iPhone 5S 5C 5 , iPad Air 4, Samsung Galaxy S4 Note 3 Tab 3 and Android Tablets. Dual USB port high output AC/DC charger , allow you to charge 2 devices at once. Use your existing USB charging cables to charge most USB powered devices. Space-saving design fits two USB ports into a compact device. 2.1-Amp USB Charging Port. INPUT (AC): 100-240V, 50/60Hz