Auto power off function || Yamaha psr-i455.

Hello friends,
Welcome back to my another youtube video.
~today I am talk about the function of Yamaha psr-i455 called 'Auto power off'.
~this function is very useful for prevent unnecessary power consumption.
~in this video I am give you the entire details of this function.
~link of all functions ditailed video
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[@lekinwala]

I want a username manual Pl guide me