Nikon Z9 Mirrorless Camera - Manual (Page 739)

739 B The Setup Menu: Camera Setup
Link Mode
Choose a link mode for WR-R11a or WR-R10 wireless remote controllers
mounted on other cameras or radio-controlled flash units that support
Advanced Wireless Lighting. Be sure that the same mode is selected for
the other devices.
Option Description
[ Pairing ]
The camera connects only to devices with which it has
previously been paired. Press the pairing button on the
wireless remote controller connected to the camera to
pair it with other devices.
• As camera will not communicate with devices with
which it has not been paired, this option can be used
to prevent signal interference from other devices in
the vicinity.
• Given that each device must be paired separately,
however, PIN is recommended when connecting to a
large number of devices.