App Stopwatch 300 30 by 8ballumpire Mar 6, 2020 0 Comment AKA 5 Minute Break Defaults can not be changed Time = 300 Seconds Warning = 30 Seconds Countdown = 5 Seconds Alarm = 0 Seconds Extension = 30 Seconds Sound, Vibrate and Extension can be turned on and off in “Settings”. Stopwatch 300 30