Abstract: A wireless audience response system that comprises a plurality of remote response units, each of the response units comprising a first transmitter, a first receiver and a first processor coupled to the first transmitter and the first receiver and having a selectable input, the input being operable by a user to instruct the first processor to provide a response output, comprising at least one of a plurality of outputs, to the first transmitter. There also is a central control unit comprising a second transmitter, a second receiver and a second processor operatively coupled to the second transmitter and the second receiver. The second processor is operative to control the second transmitter to selectively transmit a command signal, comprising at least one of a plurality of command signals, to said plurality of remote response units, and dynamically assign a plurality of time slots to respective ones of the remote response units.