Portable Emergency AA Battery Charger Extender suitable for the Creative xMod - with Gomadic Brand TipExchange Technology Specification: Input Voltage (4 X AA Batteries), Cable length (6 inches), Dimensions (5.0 X 1.5 X 0.75 inches), Circuit Design (Creative xMod specific), TipExchange enabled (Yes) Built using the unique Gomadic TipExchange Technology that protects your investment by providing the ability to upgrade charging ports by simply swapping physical connectors. Integrated circuitry regulates output voltage specific to the Creative xMod. Advanced logic maximizes overall charger efficiency. Safely engineered with reverse polarity protection, in the event batteries are accidentally put in incorrectly. Internal circuit designed to protect your Creative xMod from power surges, overcharging and short circuiting.