A device for charging a headphones battery. The device includes a first module adapted to receive a first power source through a first power source connector, the first module having a connector adapted to fit the headphones battery; and a second module adapted to receive a second power source through a second power source connector, the second power source connector distinct from the first power source connector, the second module having a connector adapted to fit the headphones battery, wherein the headphones battery is removed from the headphones and charged from the first power source when the first module is connected to the headphones battery and the headphones battery is removed from the headphones and charged from the second power source when the second module is connected to the headphones battery.