ER2830X Features Simply connects with a USB cable to charge your iPad， iPhone， iPod， Samsung， HTC， Motorola and other digital devices Effectively helps you to solve the low power problem for your digital devices while on-the-go Universal USB port fits most digital devices Delicate design with a solid construction Compact size and lightweight General Specs Compatibility iPhone， iPad， Samsung， HTC， Motorola， MP3/MP4 players， tablet PC， etc. Shape Football Input DC 12-24V Output DC 5.0V，  2.1A