Mark Feldstein & Associates Piano Gloves - Manual (Page 5)

Volume Control
Press the “VOLUME+” button on the Controller to increase volume. Continue
to press button until you reach the highest level. Press the “VOLUME-“ button
to decrease volume. Continue to press button until you reach the lowest level.
There are 4 levels of volume.
Tempo Control
Press the “TEMPO+” button on the Controller to increase tempo. Continue
to press button until you reach the highest level. Press the “TEMPO-“ button to
decrease tempo. Continue to press button until you reach the lowest level.
There are 4 levels of tempo.