Adjustable range: 00: 00-99: 55 Support counting up and down Available: ① Cooking:better taste with the right timing; ② Sleeping:sleep at ease, don’t worry about being late; ③ Skin care:help you catch the skin care time exactly; ④ Brush teeth:brush for 3-5 minutes each time; ⑤ Exercises of yoga:time control of each set of actions; ⑥ Outdoor sports and work: make works and rest time more efficient. Instructions: 1. Countdown setting Rotate the button to adjust the minutes quickly, rotate to the left to decrease the value, and to the right to increase, Set the minute value quickly, and fine-tune the second value after an interval of 1 second. 2. Positive timing setting Short press the red button on the alarm clock, when it displays 00:00, press the switch to start counting. Note: The product does not include batteries.