No computer? No problem! Charge your devices with any outlet and has 2 USB ports to charge multiple devices simultaneously. Fast charge your iPhone or iPod. Also supports iPad charging. Compatibility: iPhone 5S/5, iPhone 4S/4, iPhone 3GS/3G, iPhone iPad Air, iPad mini with Retina display, iPad mini, and etc. Samsung S3 Galaxy Tab 4, Galaxy Tab 3, and etc. HTC One (M8), HTC One (M7), and etc. Most USB powered devices