Mini 10W Car / Auto DC Charger designed for the Mio DigiWalker C520 with Gomadic Brand Power Sleep technology - Designed to last with TipExchange Technology Gomadic TipExchange Technology protects your investment by providing a means to change/upgrade your charger by simply swapping the physical charging tip. (Charging tip for Mio DigiWalker C520) included with additional tips sold separately) Charger provides a full 10W (2,000mAh) of available current in a small form factor a little over 1 inch long. Flexible, straight cable measure 50 inches in total length. Intelligent circuit provides precise output voltage and resistor configuration specific to the Mio DigiWalker C520. This ensures battery is safely and efficiently charged without affecting battery longevity. Power Sleep"" feature will cut power draw of charger by over 99% when not in use. Charger will draw less than 0.1W of power when in ""ready state"" (e.g. not connected to the Mio DigiWalker C520). Uses latest state of the art advancements in charging and surge suppression technologies to deliver a unique product in an unbelievably micro-sized form factor.