Abstract: A toolbox comprises a rigid case having an open top side providing access to an internal case storage volume therein, and a rigid cover with an open bottom side open to a cover storage volume. The cover is fixed with the case at a plurality of hinges. A removable message board and marking implement are selectively fixed within the cover storage volume of the cover. The rear side of the case includes winding posts around which a power cord is wound that conducts power to a power strip circuit having a plurality of power receptacles fixed with the case. An audio system is fixed with the case and includes a plurality of speakers, a display interface, a wireless audio signal receiver, and a control circuit. An optional bottle opener and removable lamp device may be further included.