A wireless communication system is disclosed herein. The wireless
communication system may include transmitter units and a receiver. In one
embodiment, each transmitter has an address and logic programmed to
perform the steps of receiving a user selection and, responsive to the
receiving, repeatedly transmitting a wireless selection signal until a
wireless acknowledgment signal is received. The wireless selection signal
may include the address and the user selection. The receiver may include
means to receive a wireless selection signal and logic programmed to
transmit a wireless acknowledgment signal in response to the receipt of
each wireless selection signal.