The present invention relates to a device for receiving andor transmitting signals comprising an assembly of n means for receiving andor transmitting waves with longitudinal radiation of the printed slot-antenna type, where n is an integer greater than or equal to one, and an excitation means of the microstrip-line type coupled to at least one slot line. Next, an engine fuel cut-in rpm reduction signal is output to engine control unit when a damper clutch is operated by the damper clutch operation slip control signal. The object policy mechanism may classify stored content objects into object groups or policy targets. The switching control unit causes the power control unit to perform a normal mode when the first communication interface obtains first communication-related information in the sleep mode. The at least one digital audio file is stored on a server accessible by or through the online store. The system includes a reservoir containing an active ingredient a delivery device for delivering the active ingredient and an injection device for injecting the active ingredient into the exhaust.