1. Stopwatch, supporting 99 minutes, 59 seconds and 99 milliseconds;2. Timing, supporting 99 minutes and 59 seconds timing. You can set the time that the positive timing stops. The timing starts from 0 and stops automatically at the set time. For example, to set a 10 minute timing, enter 10:00 on the remote control and press the OK key. The clock will automatically display 00:00. Press the Start key to start timing from 00:00 and stop automatically at 10:00;3. Countdown: 99 minutes and 59 seconds. The countdown can be started at any time between 99:59 and 00:00 at will. For example, if you want to set an 8-minute countdown, you can use the remote control to enter 08:00, press the Enter key, and the timer displays 08:00. Press the Start key, and the timer starts counting down from 8 minutes. The time will end at 00:004. Clock function. Support 12/24 hour switching display. H1 represents 24-hour display and H2 represents 12 hour display. The remote control can be used to switch between different display modes;5. Alternate timing. This function is also the main function of this clock. Users can use it to set the timing of daily fitness activities. Alternate timing is divided into training time and rest time. The training time is expressed as F, and the rest time is expressed as C. C C is the number of repetitions, and each group of timing can be kept on different shortcut keys. For example, three different timing methods can be saved in the three shortcut keys 1, 2 and 3 respectively. When using, just press the shortcut key, and then press the Start key, and the corresponding set of times will start running. Up to 10 groups of alternate timing shortcut saving (number keys from 0 to 9) are supported.6. TABATA key: 8 groups of exercise time F1-F8, interval time C1-C8, exercise time 20 seconds, interval 10 seconds, this key is a fixed program, press this key, click Run to start7. FGB key: press FGB once to enter F1 mode, run for 5 minutes with an interval of 1 minute, and run for 5 times; Press FGB twice consecutively to enter F2 mode and operate for 5 minutes with an interval of 1 minute for 3 times8. EMOM key: This key is a fixed program key, which counts down one minute. Click Run to count down from 60 seconds.9.10Sec key: the 10 second preparation time can be cancelled by pressing this key once, and the timing mode will be directly entered when the timing starts10. The display brightness is adjustable, with five levels of brightnessThis product is controlled by a remote controller, which is easy to operate, convenient and practical. The product is equipped with hooks, which can be fixed on the wall with screws, and the installation is very simple. It can also be placed directly on the table or the ground. Whether at home, fitness, sports, meeting timing, etc. are very good choices.It does not contain battery, and can be powered by external charging bank.