1. Functional Overview

 1. This product is widely used in nap time, study time, beauty time, kitchen, sports, phone calls, medication, meetings, and so on.

 2. This product has a positive countdown function, which can display minutes and seconds.

 3. The maximum countdown time can be set to 99 minutes and 59 seconds.

  Countdown to zero, BiBi makes a sound for about 30 seconds.

 5. Button Function:

 Minute key: The minute setting key. Press and hold this key for 3-5 seconds, and the minute value will rapidly increase, looping from 00-99-00.

 Seconds key: The seconds setting key. Press and hold this key for 3-5 seconds, and the seconds value will rapidly increase, looping from 00-59-00.

  [Start/Stop] Button: Starts or pauses the countdown timer.

  The "Clear" key: Press this key to clear the set timer time.

II. Usage Method:

 Press the 'minutes' key to adjust the required number of minutes.

 Press the 'second' key to adjust the required number of seconds.

 3. Press the 'Start/Stop' button to begin the timer, and press it again to pause. When the countdown timer reaches zero, the timer will make a 'Bi-Bi' sound.

 Press the 'Clear' button to reset the set value to zero.

 5. When the value is zero, press the 'Start/Stop' button to begin forward counting.

 6. This product can be placed on the ground with a stand or adhered to a magnetic metal surface using the magnet behind it.

Three, Battery Replacement:

 When the screen becomes blurry or the sound becomes abnormal, it is because the battery voltage is insufficient. You need to replace the battery to ensure that the machine operates normally.

 Steps:

 1. Push the battery cover outwards to open it, and remove the old battery by opening the battery cover.

 2. Use a dry cloth to wipe both sides of the new battery clean, making sure it is facing up, and then install it into the machine.

 3. Install the battery cover and secure it tightly.

 4. Use a 1.5V (AG13) battery.