Crane Song AVOCET II - Manual (Page 7)

BUTTON FEEDBACK
When holding down a button for gain trim; or speaker setup, the led now provides
feedback that the button was held for the required time. The led will wink out for 1/2
second and then come back on. In the previous version there was no feedback to
the user on mode change. This applies to the 6 input select buttons, the mono
button, and the speaker buttons for selecting the mono output channel.
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