About products: 1. Stopper, support 99 minutes 59 seconds 99 milliseconds timing; 2. Time, 99 minutes and 59 seconds support. You can set the time to stop during countdown, start countdown from 0 and stop automatically at the set time. For example, if you set the 10-minute count, use the remote control to enter 10:00 and press the confirm button, the clock will automatically display 00:00, press the start button to start counting the time from 00:00 and stop automatically at 10:00; 3. Countdown, support 99 minutes 59 seconds countdown. You can set any time between 99:59 and 00:00 to start the countdown. For example, if you set an 8-minute countdown, you can use the remote control to enter 08:00, press the confirm button, and the clock will display 08:00, press the start button, and the timer will start countdown from 8 minutes. The timer ends at 00:00. 4. Clock function. Support display of switching 12/24 hours. H1 means 24-hour display and H2 means 12-hour display. Different display modes can be switched using the remote control; 5. Alternative time. This function is also the main function of this clock. Users can use it to set the time of daily fitness classes. Alternately count training time and rest time. Training time is represented by F, and rest time is represented by C. C C is the number of repetitions, and each time group can be stored on different shortcut keys. For example, three groups of different time measurement methods can be stored in three shortcut keys with numbers 1, 2 and 3 respectively. When using, just press the shortcut key, then press the start key, and the corresponding time set will start running. Support for up to 10 groups of alternative fast time records (numeric keys from 0 to 9). 6. TABATA key: 8 groups of exercise time F1-F8, interval C1-C8, exercise time 20 seconds, interval 10 seconds, this key is a fixed program, press this key, click to start 7. FGB key: press FGB once to enter F1 mode, run for 5 minutes, with 1 minute pause and run five times; press FGB twice continuously, enter F2 mode, run for 5 minutes and run three times at 1-minute intervals 8. EMOM key: This key is the program's fixed key, which is a one minute countdown, click to run and countdown from 60 seconds. 9.10 s button: Press this button once every 10 seconds of preparation time to cancel 10 seconds of preparation time and enter time measurement mode immediately after starting the time measurement 10. Display brightness is adjustable, five brightness levels This product is controlled by remote control, which is easy to use, convenient and practical. The product is equipped with a hook that can be fixed to the wall with screws, and the installation is very simple. It can also be placed directly on the table or on the ground. Whether home, fitness, sports, meeting dates, etc. It's a very good choice. p> Package includes: 1 minute per gym