DualPower Auto 3.1A can charge your iPad/Tablet, Smartphone, GPS and more from your vehicle power socket. The Dual USB Car Charger allows you to quickly and safely charge two USB powered devices simultaneously. Its dual-port interface features one 5V/2.1A port which is ideal for ultra-fast charging devices such as iPads and other tablets, and one 5V/1A port for Smartphones, iPod, GPS and other devices.