Clock display: 12/24 hour clock can be displayed TABATA mode:Training time 20 seconds, interval time 10 seconds, cycle 8 times. FGB mode 1 Training time 5 minutes, interval time 1 minute, cycle 5 times FGB mode 2 Training time 5 minutes, interval time 1 minute, cycle 3 times. Count up: Up-counting minutes and seconds, counting from 00:00 to the preset up-counting end time, support time up to 99 minutes and 59 seconds Count down: Countdown minutes and seconds, from the preset countdown time to 00:00, support time up to 99 minutes and 59 seconds Stopwatch: Up-counting from 00:00:00 minutes:seconds: hundredths of seconds, support time up to 99 minutes and 59 seconds Alternate timing: Alternate timing is divided into training time and rest time. The training time is represented by F, and the rest time is represented by C. It supports 10 groups of alternate timing to save quickly. Adjustable brightness: five levels of screen brightness can be adjusted