Advanced Rapid Wall AC Charger Compatible with Zoom Q4 - 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 Zoom Q4 (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 Zoom Q4). Advanced state-of-the-art internal circuitry protects the Zoom Q4 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 Zoom Q4 Wall Charger travels easily, saving both space and time. Specification: Input Voltage (100 - 240vAC), Cable length (50 inches), Transformer Dimensions (2.0 X 1.75 inches), Foldable Adapter (Yes), Circuit Design (Zoom Q4 Specific)