Portable Emergency AA Battery Charger Extender suitable for the Cowon iAudio A2 Portable Media Player - with Gomadic Brand TipExchange Technology Built using the unique Gomadic TipExchange Technology that protects your investment by providing the ability to upgrade charging ports by simply swapping physical connectors. Specification: Input Voltage (4 X AA Batteries), Cable length (6 inches), Dimensions (5.0 X 1.5 X 0.75 inches), Circuit Design (Cowon iAudio A2 Portable Media Player specific), TipExchange enabled (Yes) Integrated circuitry regulates output voltage specific to the Cowon iAudio A2 Portable Media Player. Advanced logic maximizes overall charger efficiency. The rugged composite design is built to last. This product is backed by our comprehensive Gomadic Lifetime Warranty. A must have accessory for the frequent traveler, camper or heavy Cowon iAudio A2 Portable Media Player user.