Manual mode: Move the on to mode 2Adjustable M/S key, press the middle on ST/SP to start the countdownTiming: 1. When the display is 00:00, short press the 【SP/ST】 on to start timing;During the timing process, short press the 【SP/ST】 on to pause/start the countdown;3. In a paused state, long press the 【ST/SP】 key to reset to zero.Countdown setting: 1. Short press the 【M/S】 key to gradually increase the countdown time, long press the 【M/S】 key to quickly increase the countdown time. After setting, short press the 【SP/ST】 key to start the countdown;During the timing process, short press the 【SP/ST】 on to pause/start the countdown;3. In a paused state, long press the 【SP/ST】 key to reset to zero;4. After the countdown time reaches 00:00, there will be a one minute long alarm clock (the Didi Di LED screen will light up/the sound will stop, and the LED screen will turn off - these two prompts are grouped in a 1-second cycle - to remind you).Silent mode vibration reminder.5. Memory mode: After the countdown ends, briefly press the 【SP/ST】 on again to display the current set time. To reset to zero, press and hold the ST/SP on. Short press to cycle through the operation again.Notes:If the user forgets to turn off the device, or if there is no action after 5 minutes, the product will automatically go to sleep;2. After the countdown ends, the alarm duration is 1 minute;3. After hibernation, if the shutdown gravity mode is not toggled, it can be flipped and used immediately. The manual mode can be adjusted with just one press;In silent mode, there is vibration feedback at the end of the timer or any operation. There is a beep feedback during operation in volume mode;5. If the battery level is below 10%, the screen will flash, reminding to charge. The charging process will light up with a red light, while the fully charged green light will remain on