Security apparatus is provided for the display of battery operated hand-held electronic devices. It includes a electronic recoiler device that combines the function of tethering the displayed devices while at the same time providing the power required by each of the displayed devices by means of a continuous electrical connection from a power supply to each displayed device. It also provides wire and wireless alarm functions, as well as visual perpetrator identification. The apparatus also provides specific product information and comparative product information to the potential customer by visual and audible means.