Monster Beats by dr.dre Manual And Warranty page 7

Cushion removal: With the headphones upside down, grasp
the headband over the earcup that needs to have the cushion
removed. For extra support, press your thumb firmly on the red
"b" logo. With your other hand, grip the earcup cushion and turn
it clockwise. The cushion will twist off. Repeat on the other earcup
if necessary.
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Cushion reattachment: Special attention needs to be paid
to alignment of the three clips on the inside of the cushion
and the earcup as well as the notch on the bottom of the
cushion. It will be extremely helpful to examine the three
clips inside of the cushion and on the earcup and note
how they fit together before reattaching the cushions.
clip
notch
cushion
clip
notch
earcup
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