Wireless transmitter to be used with our Wireless Attendant Call systems. By default, it comes adapted to accept a standard 3.5mm switch (not included). If you do not need switch adaptation, check the box below and we will not add it. Multiple transmitters can be assigned to one receiver. When more than one transmitter is used with a receiver, they can be set to play the same chime, or can be set so each transmitter sends a different chime.