An image recording device includes a conveying roller which extends in an axial direction, and a guide member which extends in the axial direction and is configured to guide a recording medium toward the conveying roller. The controller has at least one sensor wherein activity of a user wearing the device is detected. The shield includes a pouch-like portion sized to snugly encompass and cover the trailer coupler means. A frame is positioned around an outermost boundary of a plurality of the discrete non-concentric acoustic-radiating diaphragms, which are adjacent to the outermost boundary.