Advanced Rapid Wall AC Charger Compatible with Sony Walkman NW-E507 - Amazingly powerful home charge design built with Gomadic Brand TipExchange Gomadic Powerful High Wattage wall charger for home or travel use. Customized circuit design is based on the latest in power regulation and is tailored to the precise output voltage and resistor ID requirements of the Sony Walkman NW-E507 (accurate to 0.1v!) Power Sleep"" feature reduces vampire power draw 99%. Charger will consume less than 0.1W of power when in ""dormant state"" (e.g. not connected to the Sony Walkman NW-E507). Advanced state-of-the-art internal circuitry protects the Sony Walkman NW-E507 from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. Uniquely engineered in a small, lightweight, and highly portable design, the Gomadic Sony Walkman NW-E507 Wall Charger travels easily, saving both space and time. A quality product intended to be the last home/travel charger you ever buy! This product is backed by the Gomadic Lifetime Warranty.