Mini 10W Car / Auto DC Charger designed for the Sony Walkman NWZ-E463 E465 E473 E474 E475 with Gomadic Brand Power Sleep technology - Designed to last with TipExchange Technology 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. 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 Sony Walkman NWZ-E463 E465 E473 E474 E475) included with additional tips sold separately) Intelligent circuit provides precise output voltage and resistor configuration specific to the Sony Walkman NWZ-E463 E465 E473 E474 E475. This ensures battery is safely and efficiently charged without affecting battery longevity. Generous input voltage range of 12-24VDC, supports a wide variety of DC charging ports from cars and trucks (both foreign and domestic) to boats, planes and RVs. Integrated advanced charging technology protects the device from power surges, overcharging and short-circuiting.