I came across a circuit board I had purchased a while ago that records and plays back audio (see photo). I'm taking an online course in basic electronics but this board is a bit more advanced. I would like to try out the function of the board, I just don't know how to apply power to it (the board arrived with no instructions). I know to connect a speaker to the speaker jacks. I imagine the pins "VCC" and "GRD" handles the power supply. The things I've learned in my class are so far pretty basic. Can someone tell me what I need to operate this device?
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