5.When the target moves to another position, tap and hold the centre of the new target. Repeat each time to complete the calibration process.
6.When completed, tap 
.
8.5 Power
To check the remaining power level of your battery and/or set up the power saving feature:
1.Tap the Settings button on the Home screen.
2.Tap the Power button.
3. The screen shows the remaining power of your battery.
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