YS-528L Full Metal Digital Timer 0.01s Precision Digital Stopwatch Professional Portable Luminous Sports Running Training Timer

Feature: 1.Stopwatch: 0.01 second precision, up to 39 hours 59 minutes 59 seconds 2.Clock and calendar: 24-hour system, year, month, day display, week display 3.Alarm clock: daily alarm clock can be set, and the alarm clock can be turned on or off 4.Hourly timekeeping: the hourly timekeeping can be turned on or off 5.Countdown and cycle timing: the longest timing is 39 hours, 59 minutes and 59 seconds, and the reminder time can be set 6.Luminous display: press once for 4 seconds 7.Can be mute: can turn on or off the button sound(Only the illuminated version can turn off the button sound) 8.Memory function