A method and apparatus for controlling the maximum number of retransmissions of an information packet that may be attempted if the information packet was not properly received is disclosed. Upon determination, the device transmits sound picked up within the vehicle to a portable monitor unit carried by the owner of the vehicle using a dedicated link without using any communications network. An upper connector is coupled to the upper frame member and the upper cuff member and is configured to enable selective engagement between the upper frame member and the upper cuff member. Each of the pole heads is arranged radially adjacent to a corresponding one of the pole teeth.