Disclosed herein are devices and methods providing directed media content to an individual on a mobile unit, as well as devices and methods for the rapid storage of power on mobile units to power the devices providing media content to an individual user. The disclosed devices and methods allow for such mobile units to power electronic components located on the mobile units. Furthermore, the disclosed devices and methods allow for securing a media-delivery device to a safety bar or other portion of a mobile unit without comprising the safety or integrity of the mobile unit.