Product Parameters Battery capacity: 500 mAh Working temperature: 0°C-50°C Standby power consumption: <20 μA Sleep power consumption: <150 μA Working current: 11 mA Charging current: 500 mA Volume: Silent/Vibration, High volume 90-100 dB, Low volume 70-80 dB Instructions for use 1. Gravity Mode (Mode 1) Slide the switch to Mode 1. Turn the timer upwards for 5-10-30-60 minutes to automatically start the countdown. When the screen is turned upwards, the countdown is paused, and when the screen is turned downwards, the time is reset to 00:00. 2. Manual Mode (Mode 2) Manual M/S switch Use the M/S buttons to adjust the time. Press the middle ST/SP button to start the countdown. Count Up When the display shows 00:00, short press SP/ST to start counting. During the countdown, you can pause or resume it by short pressing SP/ST. In pause mode, you can reset by long pressing ST/SP. Count Down Adjust the time by short pressing M/S to increase the time step by step. Long press M/S for quick adjustment. Then short press SP/ST to start counting. During the countdown, you can pause or resume it by short pressing SP/ST. In pause mode, you can reset by long pressing SP/ST. When the time reaches 00:00, an alarm starts for up to 1 minute: – \"Beep-beep\" + LED display lights up – Sound stops + LED display turns off (Cycles every two seconds) In silent mode, vibration is used as a reminder. Memory function: When the countdown is over, short press SP/ST to display the last set time. Long press ST/SP to clear. Short press returns to the previous setting. Important notes If the user forgets to turn off the device or if it is not used for 5 minutes, it automatically enters sleep mode. The alarm after the countdown ends lasts for 1 minute. After sleep mode, the timer can be used directly: – In gravity mode by turning the device – In manual mode by pressing a button In silent mode, the timer vibrates at the end of the timing or with each button press. In sound mode, a short \"beep\" is emitted with each button press. When the battery level is below 10%, the screen flashes as a reminder to charge. – During charging, a red indicator light illuminates – When fully charged, a green light illuminates constantly