A pair of eyeglasses includes a front having two semi-rims and two temples are pivotably connected to outsides of the two semi-rims. The control system employs at least one control algorithm that enables the testing system to be operated at optimal pressure and frequency levels in order to generate a desired system response, such as a desired energy level and desired slope of the fast Fourier transform of the system response. A conveyor belt catches debris thrown forwards and upward by the brush and moves the debris to a hopper. Because it is specific for monocytic cells, the inventive vector is particularly suited to vaccine applications. The invention features various orientations for mounting a pair of loudspeakers within an automobile which directly radiate sound out of a rear opening of the automobile.