Fangrui Product Details High Quality Material: This Timer Has A Strong Plastic Housing, Which Is Fracture Resistant And Durable. Equipped With Large Lcd Screen, Digital Display Is Clear, Easy To Operate. Plastic Button Design, Anti-fouling Durable, Provide A Good Touch Experience. Multifunctional Application: This Compact Timer Is Versatile And For Setting Lunch Breaks, Study, Beauty, Sports, Meetings Or Cooking Times. It Can Send Timely Reminders, So That You No Longer Worry About Losing Track Of Time. Innovative Design: The Back Of The Timer Is Designed With A Support, Which Can Be Placed On Any Flat Surface. It Can Also Be Adsorbed On Refrigerators Or Other Iron-containing Objects. Large Bell Mouth Design, Clear Sound, Easy To Hear. There Are Also Hidden Hanging Holes For Easy Storage. Usage Instructions: When Replacing The Battery, Slide Open The Battery Door, Correctly Distinguish The Positive And Negative Battery Terminals, And Then Push The Battery Door Back. Power Supply:1 X Aaa Battery(not Included Batteries)