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The Bluetrek® S21 headset has 3 buttons:
•
“TALK“ button (central button),
•
1 “VOL+“ button,
•
1 “VOL-“ button.
Before using Bluetrek® S21 headset, you must:
. Charge the headset; please refer to the “Charging Bluetrek® S21” section of this
user guide.
. Pair the headset with a mobile phone. Please refer to the “Pairing Bluetrek® S21”
section of this manual.
2. Charging Bluetrek® S21
Your headset is delivered uncharged. So before the first use, you must fully recharge
it for about 8 hours with the supplied charger, until the red indicator light turns off.
Always use the provided charger only
.
The use of any other charger will automatically
suspend the warranty. During subsequent charges, the charging should take
approximately 1 hour 45 minutes.
Please connect the charger to the headset and to the mains. During the charge, the
indicator light is red if your headset battery is not fully charged. The indicator light will
turn off when the charge is complete.
When you hear a light beep in your headset at regular intervals, and the indicator
light flashes in red, your headset needs to be recharged.
To maximize battery lifetime, it is recommended to recharge your headset to full
capacity only when the battery is low, since a battery has a lifetime of about 500
charging cycles.
If you leave your headset battery empty for an extended period of time, it could
excessively discharge the battery. In this case, you may have to charge your headset
for 10 hours or more until the battery recovers and recharges completely. Only switch
on the headset once the red indicator light turns off, indicating the battery has fully
recovered.
Do not let the battery charger remain plugged in the headset for more than 24hours.