Good product, but the user manual is incomplete. If a dot is blinking in the bottom right corner of the display, it means that a pairing has already taken place (probably at the factory) and that the device is waiting for its already assigned transmitter. To establish a link with a new WDMX transmitter, this pairing must first be erased. To do this, go to the “Ulrl” menu and hold down the “enter” button for 5 seconds. Only then will the Varytec accept a new pairing (by simply pressing the function button on the G5).