Do You Time Tests Quizzes Presentations Or Assignments Now Theres An Easier Way To Track Timed Classroom Activities. Bright Led Numerals Count Down The Minutes And Seconds For All To See Changing From Solid Green To Flashing Green To Red As The Time Diminishes. Tones Sound At Designated Times To Keep Students On Track; When The Clock Reaches Zero A Voice Or Sound Announces Times Up. Setting The Timer Is Easy And Intuitive--touch A Quick Start Button To Immediately Start A 5 10 15 30 45 Or 60minute Countdown. This 3in1 Timepiece Also Works As A Stopwatch And As A Classroom Clock.