The GPS Dual Socket Power Adapter provides 2 power recepticles from a single outlet in your vehicle, allowing you to use 2 car chargers to power or charge multiple devices at one time. Simply plug the Power Adaper into your cars power outlet and connect the car charers for your 2 devices. The Power LED light will turn on indicating that both devices are receiving power. Ideal for keeping you up and running, while on the go, and for powering devices like GPS, Cell phones, Satellite Radios, iPods, iPhones. Ideal for those on the go, while keeping you up and running devices like GPS, Cell phones, Satellite Radios, iPods, and iPhones.