Apple iPod, iPhone, or iPad are registered trademarks of Apple, Inc. Products are Apple compatible and not endorsed by Apple, Inc. Compatible with MP3 iPod iPhone 4G OS 4 iPhone 4S AT&T, Sprint, Version 16GB 32GB 64GB * The innovative retractable design cuts down on travel bulk & ensures the portability of your MP3 player w/ out sacrificing functionality. No more heavy, bulky, tangled cables. * Color: Black. Size: Perfect Fit. * Length: 3 inches/ 7.5 cm (can be extended up to 32.5 inches/82.55 cm). * Accessory only.