The usb2pcarbk dual port usb car charger features two usb 20 ports and works with any standard car aux power outlet enabling you to charge two mobile devices simultaneously while you commute for work or play with a 1a port for charging your smartphone or iphone and a 24a port for charging your ipad or other tablet you can always be sure you have the correct charge available for all your mobile devices having the second usb charge port available means you can charge two phones si