Advanced Rapid Wall AC Charger Compatible with HKC 7 Tablet P771A - Amazingly powerful home charge design built with Gomadic Brand 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 HKC 7 Tablet P771A). 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 HKC 7 Tablet P771A (accurate to 0.1v!) Advanced state-of-the-art internal circuitry protects the HKC 7 Tablet P771A 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 (HKC 7 Tablet P771A Specific) Charger works on power voltage levels worldwide by supporting a wide input range of 100-240v AC / 50-60 Hz.