Opticon H16 User Manual - Manual (Page 20)

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Chapter . Basic Operations
2.1 Getting Started
Powering On/Off the Device
Press the POWER button to turn on the device. The POWER button
is located on the top side of the device. When you power on the
device for the first time, you are asked to calibrate the device.
Please refer to the “Calibrating your device” section in this chapter
for calibration steps. Press the POWER button again to switch
the device to sleep mode. You can still receive phone calls and
messages when the device is operating on sleep mode. To power
off the device completely, press and hold the POWER button for 
seconds and the system will prompt you to power off the device.
Calibrating Your Device
Calibrating the device ensures the tapped
item is activated. To calibrate your device,
tap the center of the cross with the stylus
as the cross moves around the screen. If
you would like to re-calibrate the device,
follow the steps below:
1. Tap > Settings > System tab >
Screen.
. Tap the Align Screen button and follow the
on-screen instructions.