Ruizu D08 - Tools; Stopwatch Function; Calendar Function; Calculator Function

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Tools
Select "Tools" on main interface, click button.
A related list will show "Stopwatch", "Calendar",
"Calculator".
1.Stopwatch
Choose "Stopwatch", click button to access to
this function. Click again to start the timer, then
click again to stop/resume. Press to start a
new one. Click to go back.
Please note: the maximum Stopwatch list is 5.
2.Calendar
Choose "Calendar", click button to access to its
function and view the date and time. Click button
to go back. If you want to set the calendar, please
go to “Setting” ---> “Date & Time”.
2.Calculator
A normal digital calculator. Use the direction button
to move the cursor.