Gravity mode Turn the knob to position 1 Turn for 5103060 minutes and start the countdown automatically The screen pauses when turned up and goes to zero when turned down Manual mode Move the knob to position 2 Adjustable M S button press the middle ST SP button to start the countdown Timing 1 When the display shows 0000 short press the SP ST button to start timing During the timing process short press the SP ST button to pause start the countdown 3 In the pause mode long press the ST SP button to reset to zero Countdown setting 1 Short press the M S button to gradually increase the countdown time long press the M S button to quickly increase the countdown time After setting short press the SP ST button to start the countdown During the timing process short press the SP ST button to pause start the countdown 3 In the pause mode long press the SP ST button to reset 4 When the countdown reaches 0000 there will be a oneminute alarm clock the LED display Didi Di lights up the sound stops and the LED display goes out these two prompts are grouped in a 1second cycle to remind you Silent mode vibration reminder 5 Memory mode When the countdown is complete short press the SP ST button to display the current time To reset press and hold the ST SP button Short press to cycle through the operation again