Btbsign Digital Countdown Days Timer Blue 3 Inch Countdown Count up Game Day Retirement School

Countdown Day from 999 23:59:59 to 000 00:00:00 or create a desire day to zero Count up day from beginning day to desire ending day. Display regular time. Easily set your desire day and time then count up or countdown by wireless remote controller Stopwatch count up from 000 00:00:00 to 999 59:59:99. Activate reset button to zero Very useful to use for retirement, school classroom wedding exhibition, safety day etc