Hold , and select System.

Language

Sets the language displayed on the device (Changing the Device Language).

Backlight

Sets the backlight timeout, brightness, and behavior (Using the Backlight).

Sounds

Turns audible tones on or off for keys and alert messages (Turning the Device Tones On and Off).

Units

Sets the units of measure used on the device.

Time

Sets the device to display time in a 12-hour or 24-hour format.

Position Format

Allows you to set the format for viewing geographical coordinate position details.

Auto Power Off

Allows you to set the device to automatically power down after 10 minutes of inactivity.

Reset

Allows you to reset the system settings or delete all user data (Restoring All Default Settings).

About

Displays the software version and unit ID, and allows you to check for software updates (Viewing E-label Regulatory and Compliance Information).