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4.3 Charging
You can charge the headset by connecting the supplied USB power &
data cable into a computer’s USB port or USB wall charger. You can
use any standard micro USB cable to charge the unit. You can also
charge it on the road using the cigarette charger. The charging LED
turns red while charging and turns blue when fully charged. It takes
about 2.5 hours to be completely charged.
or
AC Adapter
4.4 Checking the Battery Level
4.4.1 LED Indicator
When the headset is powering on, the red LED ashes rapidly
indicating the battery level.
4 ashes = High, 70 ~ 100%
3 ashes = Medium, 30 ~ 70%
2 ashes = Low, 0 ~ 30%
4.4.2 Voice Prompt Indicator
When you power on the headset, keep pressing the Center Button and
the (+) Button simultaneously for about 3 seconds until you hear three,
high toned beeps. Then you will hear a voice prompt indicating the
battery level. However, if you release the buttons as soon as the
headset turns on, you will not hear a voice prompt for the battery level
indication.
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