The energy efficient home USB charger with auto-detect technology built-in for optimised charging of all of your USB compatible devices. 5 star energy efficiency rating means minimum energy consumption when its not in use, which saves energy, money and the environment. Auto Detect Integrated Circuit Technology automatically detects the device type and its specific charging needs for optimum charging. The lightweight design makes it easy to use anywhere; plug in and charge at home, work or whilst you away.