UPGRADED MAGNETIC 2.0 BACKING You can see a stong magnet In the back, so you could use it on a magnetic surface, like refrigerator, oven and cooker hood. It also has a kickstand, a Hanging Hole, you could use it on either a flat surface or attach it to your lanyard LOUD AND CLEAR ALARM BUT NOT DEAFENING You will easily be able to hear this alarm in another room. Loud but not deafening (the mildly hard of Hearing should have no problem with the alarm) Single AAA battery not included. BIG SCREEN WITH BIG DIGITS You could see the time easily with its big screen. The numbers are big enough and very clear HOW TO USE ON/OFF SWITCH IN THE SIDE MAX TIME 00:00~99:59 MEMORY FUNCTION (Press ST / SP will return back to the time you set before) COUNTDOWN & COUNTUP (Press M / S together time will back to the 00:00) Great timer for kitchen Cooking and Baking, Shower, BBQ, Classroom, Kids, Teacher, SPA, Bathroom, Oven and etc