Gomadic Intelligent Compact AC Home Wall Charger suitable for the Zoom H4n - 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 Zoom H4n (accurate to 0.1v!) Advanced state-of-the-art internal circuitry protects the Zoom H4n from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. 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 H4n). Charger works on power voltage levels worldwide by supporting a wide input range of 100-240v AC / 50-60 Hz. Uniquely engineered in a small, lightweight, and highly portable design, the Gomadic Zoom H4n Wall Charger travels easily, saving both space and time.