E2 24 Watt 2-Port USB Car Charger features optimized charging circuitry to deliver 24W of power between 2 USB ports and can detect the precise power demands of your device to ensure the fastest possible charge. The optimized circuitry also ensures no harm will be done to less powerful devices such as iPhones and iPods, while power hungry iPads and Tablets can be charged simultaneously while you are on the road. The EC242 is universally compatible with iPhone 6, 6+, 5, 5S, 4, 4S, iPad, iPad Air, iPod 7, Galaxy S5, S4, S3, Note 2, Google Nexus, HTC One, LG G3 and more.