Compact and lightweight to carrying tips for all your devices eliminating the need to carry individual model-specific chargers * This tip compatible with Select Sprint Mobile Phones and Amazon Kindle * Works with iGo everywhere15, iGo auto15 elite, iGo everywhere, iGo wall, iGo auto and iGo dualpower accessory * Interchangeable power tips allow you to rapidly charge virtually all gadgets up to eight times faster than standard USB and trickle chargers with a single adapter. iGo power adaptor sold separately. * Automatically configures and regulates voltage and current, eliminating the need to adjust proper voltage on a multi-voltage charger