Nikon D5500 - Manual (Page 148)

124 P, S, A, and M Modes
A
ML-L3 Remote Controls
If you will be using an ML-L3 remote control, select one of the
following remote control modes as described on page 107:
" (Delayed remote (ML-L3)) or # (Quick-response remote
(ML-L3)). Note that if you are using an ML-L3 remote control, pictures
will be taken in “Time” mode even when “Bulb”/
A is selected for
shutter speed. The exposure starts when the shutter-release button on
the remote control is pressed and ends after 30 minutes or when the
button is pressed again.