Unique Gomadic Car and Wall AC/DC Charger designed for the HKC 7 Tablet P771A &ndash; Two Critical Functions, One Great Charger (includes Gomadic TipExchange) Broad input voltage range of 12-24VDC and 100-240VAC respectively. Permits charging via vehicle and home outlets worldwide! Intelligent circuit tailors precise output voltage (including resistor configuration) specific to the HKC 7 Tablet P771A. This ensures battery is safely and efficiently charged. State of the art, advanced circuitry prevents the HKC 7 Tablet P771A from being damaged by power surges, overcharging and/or short-circuiting. Power Sleep feature will cut power draw of charger by over 99% when not in use. Charger will draw less than 0.1W of power when in ready state (e.g. not connected). Non-coiled, straight cable design allows for easy routing around your vehicle trim for a more professionally installed look. Durable construction is built to last.