General Spec Color white Length approx. 90cm Plug & Interface 1 × Mini USB,  1 × Customized USB    Function extend the length of your Apple iPhone or iPod cable Compatibility iPhone 3G/4G Others come with a cap Features Extend the length of your Apple iPhone or iPod cable by 90cm. Use with your computer or with a wall charger. Simply plug in your existing iPod/iPhone cable into this extension and its ready for use. USB 2.0 Compliant, fully backward compatible with USB 1.0, 1.1. Come with a cap, well protect the plug from dust, high quality.