Acer mf350 User Manual

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Power On and Off  
1.  Press the Play/Pause「 」button once to turn the power 
on. 
 
2.  To power off the USB Device, press and hold the 
Play/Pause「 」button until the power is switched 
off.  While you are long pressing the Play/Pause「 」
button to power off the MP3/Storage Drive, you will 
see a Power Off Status Bar appearing on the Display 
to show you the Power Off status, and note that it takes 
about three to five seconds to turn the power off.