This timer is versatile and perfect for a variety of situations, including the office, work, meetings, tasks, studying, reading, exercising, cooking and countless other scenarios. In fact, you can use this timer in almost any situation you can think of! No need to press buttons repeatedly when you need the standard 1, 5, 10, 25, 30, 60 minutes. You can also set preset times according to your personal needs. (2 x AAA batteries not included) recording time, with the screen facing up, slide the switch to silent mode or ring mode, the screen light up. Then wait 5 seconds to flip it over and recording your time. If the preset time on the productivity timer isn't what you want, you can press "M+" or "M-" to increase or decrease the minutes. Minute adjustment be unavailable 5 seconds after the countdown begins. Made of high-quality material, Silent and ring mode, when working or reading in public places, a flashing notification on the LCD screen lets you know the time is up, but in silent mode it not disturb others. No need to yell ", set timer for 30 minutes" around , just tell your kids "dinner in 30 minutes" and set the kid's timer to ring mode and flip it and a loud, sweet remind you It doesn't matter if you forget to turn it off, the sound stop after 15 seconds.