Nikon D7200 body - Manual (Page 134)

134 Menu Guide
If Enable is selected, wireless connections can be established
during viewfinder photography simply by touching the camera
N (N-Mark) logo to the smart device NFC antenna while the
camera standby timer is on. Select Disable to disable NFC
connections.
Adjust ftp and network settings for Ethernet and wireless LANs
when an optional UT-1 communications unit (
0 173, 188) is
connected.
NFC
G button
➜ B setup menu
Network
G button
➜ B setup menu