Knob twist design, this timer is set to time by the twist of control. Button or turn the specified countdown timer or use it as a stopwatch. Special design makes it easy to manage time Easy to manage time, it is a digital timer with countdown function which can be used as countdown timer, countdown timer 99 minutes and 55 seconds to zero, or as a stopwatch from zero to 99 minutes and 55 seconds Magnetic timer, it comes with a magnet and an anti-slip mat on the back. Tear off the film before using and attach it to the place where it can be absorbed by the magnet. Times up, it rings to warn Big digit for easy reading, the LCD display to show the stopwatch digits more clearly, the minutes and seconds both be shown with large figures. Easy to read Memory function saves last timer setting for quick repeated use. Good for kitchen time, baking, sports, classroom teaching or other things need to remind you with remind Note for use Please please remove the film, otherwise it will not stick Requires 3 AAA 1.5V batteries, not included in the package. Three volume adjustments Quantity delivered: 1 piece