1. Product Features: 100-minute electronic positive and negative countdown timer with memory function

2. Scope of Application: Lunch Break, Study Time, Beauty Time, Exercise Time, Phone Call Time, Meeting Time, Kitchen Cooking, Parking Time, Experimentation, etc.

III. Timing Setting:

1: Press the START/STOP (ST/SP) key to start the countdown.

2: Press any key to stop the timer, and simultaneously press "MN (M)" and "SEC (S)" to reset.

Fourth, Countdown Setting

1: Set the time by pressing 'MN (N)' for minutes, and press 'SEC (S)' for seconds.

2: Press the START/STP (ST/SP) key to start the countdown.

3: A buzzer with a 60-second timer prompt

4: Press any key to stop the countdown, and press "MN (M)" and "SEC (S)" simultaneously to reset.

Five: The Role of Memory Function

1: After the countdown ends without pressing any key, the buzzer beeps stop, and the screen displays the countdown setting value.

Press the START/STP (ST/SP) key again to start the countdown.

Six: Battery Replacement

1: When the timer is unclear or the sound weakens, replace the batteries.

2: Use AAA7 batteries.

3: Slide open the battery cover, remove the battery, distinguish the positive and negative poles of the new battery, and place it in, then push the battery cover back into its original position.