Gomadic Intelligent Compact AC Home Wall Charger suitable for the Sony PRS-300 Reader Pocket Edition - High output power with a convenient, foldable plug design - Uses TipExchange Technology 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 PRS-300 Reader Pocket Edition (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 PRS-300 Reader Pocket Edition ). Advanced state-of-the-art internal circuitry protects the Sony PRS-300 Reader Pocket Edition from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. 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 PRS-300 Reader Pocket Edition ) included with additional tips sold separately) Charger works on power voltage levels worldwide by supporting a wide input range of 100-240v AC / 50-60 Hz.