A flow control mechanism connected to the intake and exhaust systems of an engine. The tamper respondent covering has a cover-shaped structure to cover an electronic part which is exposed. A slider extends through the interior and slidably engages the manifold housing. The operations can further include receiving the promotional content from promotional content server in response to said providing the information associated with the promotion trigger event to the promotional content server, and presenting the promotional content at the wagering game machine. The peripheral portion of the mask includes a soft, flexible portion that contacts tissues surrounding the laryngeal opening when the device is inserted into a patient, the soft, flexible portion being arranged whereby application of pressurized gas to the airway tube urges the soft, flexible portion into contact with the tissues surrounding the laryngeal opening or the pharyngeal wall. The chip antenna includes input impedance.