Gomadic High Output Home Wall AC Charger designed for the Logitech Harmony 900 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 Logitech Harmony 900). 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 Logitech Harmony 900 (accurate to 0.1v!) Advanced state-of-the-art internal circuitry protects the Logitech Harmony 900 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 (Logitech Harmony 900 Specific) A quality product intended to be the last home/travel charger you ever buy! This product is backed by the Gomadic Lifetime Warranty.