Easy to use: just press the [START/ STOP] to start counting up timing, press any key to stop timing and then press the [MIN] and [SEC] at the same time to go to zero; If you want to count down time, just press [MIN] or [SEC] as you need, and then press [START/ STOP] to start counting down time, you will hear a buzzer sound when time goes out, press any key to stop timing and press the [MIN] and [SEC] at the same time to go to zeroLarge LCD screen for reading: these kitchen digital timers are designed with large LCD screens, easy for you to read numbers clearly and bring you much convenience, will not take your much time to read numbersAlarm to remind you: the cooking timers digital tool has an audible reminder when time goes out, which supports you to do other things when cooking, and you don't need to watch the timer all the time, making your cooking more relaxedPractical function: the maximum setting time of 99 minutes and 59 seconds will be accompanied by a reminder, the count up and down timer will work well as kids, teachers, students, cooking, classroom, bathroom, meeting, game timer, BBQ, exercise, gym workout and reading timer