Ultra-Clear LED Display with 2 Brightness Levels: Large 4-inch digital white LED display with clear numbers makes it easy to see the remaining time. 1.3 inches high big numbers have 2 levels of brightness to meet your different needs. If there is no operationwithin 5 seconds, the display will automatically turn off, saving you from worrying about forgetting to turn it off manually. 3-Level Volume Adjustable: Loud alarm (80-90dB) is easy to hear even when you are not around, and low volume (60-75dB) will be better when used by children to protect their hearing. To meet the needs, increase the silent level (digital flashing) (whenset in loud/low volume mode, the alarm will also beep, please set it to the silent level according to your needs) Countdown & Countdown Time Management: Count down from 99 minutes 59 seconds to zero, or count down from 0 to 99:59 as a stopwatch, making it a perfect timer for housewives, kids, teachers, students, cooking, skincare, yoga, games, meeting, class Place the timer anywhere you need: two strong built-in magnets covered with silicone, strong suction and non-slip, easy to stick it directly on any metal surface, or you can use the hook to hang it on any place, it also comes with a position representingthe desktop SUPER EASY TO USE BIG BUTTONS: Separate M and S buttons to set the exact time you need, SP/ST buttons for start/pause, CLEAR button added to make it easier to reset. After the countdown is over, you can press any button on the top to recall the last setting,saving time for setting again.