User manual
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6. Button K4:for adjusting speaker volume down
7. Microphone:for picking up your voice
8. Charging Port:for connecting to the travel (or car) charger to charge the battery of
device
1.6 Definitions on Key Press Duration
z Short press (SP): press and release a button quickly.
z Long press (LP): press and hold a button for at least 3 seconds, then release.
z Very long press (VP): press and hold a button for at least 6 seconds, then release.










