Hercules DJControl Inpulse 300 MK2 User Manual page 15

5. Jog wheel
Jog wheel: lets you move within the track, modify the
track's playback, and scratch.
When the Beatmatch Guide function is enabled, the
BEAT ALIGN visual guides indicate the direction in
which you need to turn the ring (i.e. the edge) of the jog
wheel in order to align the beat grids of the two tracks.
When the two red arrows are off, the beat grids are
aligned.
For more information on the Beatmatch Guide function,
Beatmatch Guide
please read the section on page 25.
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