Gomadic High Output Home Wall AC Charger designed for the Philips GoGear HDD1630/17 with Power Sleep technology - Intelligently designed with Gomadic TipExchange 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 Philips GoGear HDD1630/17). 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 Philips GoGear HDD1630/17 (accurate to 0.1v!) Advanced state-of-the-art internal circuitry protects the Philips GoGear HDD1630/17 from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. Specification: Input Voltage (100 - 240vAC), Cable length (50 inches), Transformer Dimensions (2.0 X 1.75 inches), Foldable Adapter (Yes), Circuit Design (Philips GoGear HDD1630/17 Specific) Charger works on power voltage levels worldwide by supporting a wide input range of 100-240v AC / 50-60 Hz.