Dell Lightning User Manual page 14

Feature Function(s)
Touch to open the search box to find
Bing search button
4
items from the Internet, contacts from
the contact list, or applications from
Marketplace.
Proximity sensors Detects and turns off the screen when
5
you bring the phone close to your ear to
make or receive calls, in order to prevent
unintentional touch on the screen.
14
Getting to Know Your Dell™ Lightning