Presentation Timer

[Main function]
:Set of presentation time and announcement before the end Q and A time
:End, you notice flashing screen and bell sound
:It announced before the end-once, announced at the end twice, question-and-answer session at the end of the notification three times Bell

[Main use]
:Presentation practice and production at school
:Presentation at the Society
:Company announcement of
:As a simple stopwatch

Keywords: stopwatch, presentation, society, announcement, timer, school