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External USB 7.1 Channel Sound Box
6.
Start Key Shifting Function: Select this button to enable key shifting function
and control.
7.
Key Shifting Low/High Control Bar: This function can adjust tune of background
music to fit your singing.
8.
Star Vocal Cancellation Function: Select this button to enable vocal cancellation
function and control.
Vocal Canceling Control Bar: This function can control singer's vocal of
9.
background music and cancel it as possible.
User's Manual
30
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