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DT398H
ENGLISH 6
Bluetooth Management
Where supported by software, many of the hard buttons on the DT398H are programmable to perform a function
of the user’s choice. To activate the button re-assignment application, invoke the Button Manager application.
Brightness Control
To control the screen brightness, launch the System Utility. The System screen will display a Brightness control
section with up and down arrows that can be activated with the stylus.
Battery and Power Management
The DT398H is equipped with an internal 1880mAh Li-Ion battery pack that is capable of supporting
approximately 3 - 4 hours of continuous operation. The period between battery recharges can be significantly
lengthened by putting the device into Standby mode through the Power Button (see Buttons Function Table)
whenever the device is not in use. Depending on the operating software, the DT398H may also be configured to
enter various power-saving modes via the Power Button or through timed entry.