"The type of Vision the Shocker NXT will use is
selected by holding down the mode buttons and
turning the Shocker NXT on. With the Shocker NXT
unloaded and degassed, open the grip and hold
down the top programming button, then turn the
Shocker on to select Break–Beam Vision. Use the
lower button to select Toggle Vision, or both buttons
at the same time to select Reflective Vision."