Dell BT-308 Owner's Manual page 76

Type the first letters of the city. As you type, the list of available cities
6
scrolls to show matching cities.
Select the name of the city and then tap OK. The Enter POI Name
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screen appears.
Type the first letters of the POI or select one and then tap OK. The
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Selected Point of Interest appears, listing the POI information.
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Owner's Manual