Turn up volume on rubiks revolution?

Put your index finger on either the yellow or silver button and your OTHER index finger on the other color. (EX: You put a index finger in yellow take your other hand and put it on silver)Turn on your Rubik's Revolution & put back your index fingers in the buttons told.

Next, While the robotic lady is talking or during the part of the guy saying " RUBIK'S REVOLUTION. Continuously/Rapidly press click/press on the yellow and silver button until it says something like Volume something blahblahblah. Then just play around with the buttons and so - so.Good luck! and here's my advice.If you wanna impress your friends at your score (blue) then just play in the dark x].