Cables and Tap
    Main Cable: The ENJOY Audienc Response System main cable is used to connect main receiver to the   COM port of computer and adapter. The ENJOY Audienc Response System main cable is 15 meters long. It has   an adapter port, which is connected to a DC12V, 800mA Power Adapter.

    Extension cable (selective): The ENJOY Audienc Response System extension cable is used to connect one receiver to another receiver. It is 7 meters long.

    Tap (selective): If the cables are not long enough, we can use the tap to elongate them. Illustration is as follows: