F4 Study Timer Kitchen Cooking Countdown Reminder Multifunctional Digital Alarm Clock 1. Material: ABS 2. Battery capacity: 500mAh 3. Working temperature: 0-50 degrees Celsius 4. Standby power consumption: 20uA 5. Sleep power consumption: 150uA 6. Working current: 11mA 7. Charging current: 500mA 8. Volume level: mutevibrate (loud 90-100DB, quiet 70-80DB) 9. Timing: gravity mode (5-60 minutes), manual mode (99 minutes and 59 seconds) 10. Product size: 44 x 44 x 46mm 11. Net weight: 47.5 grams 12. Packaging: color box Instructions: Gravity mode: Turn the button to mode 1; scroll 5-10-30-60 minutes upwards, and the countdown will start automatically. Turn the screen upwards to pause, and the screen downwards to clear the timer. Manual mode: Set the button to mode 2; adjustable MS button, press the middle button STSP to start the countdown Positive timing: 1. When the display is 00: 00, short press the [SPST] key to start counting; 2. During the timing process, short press the [SPST] key to pausestart the timing; 3. In the pause state, press and hold the [STSP] key to clear. Countdown settings: 1. Short press the [MS] key to adjust the countdown time incrementally, long press the [MS] key to quickly increase the countdown time. After the setting is completed, short press the [SPST] key to start the countdown; 2. During the timing process, short press the [SPST] key to pausestart the countdown; 3. In the pause state, press and hold the [SPST] key to clear; 4. After the countdown time reaches 00:00, there will be a one-minute alarm clock ("Didi Didi" LED screen lights upthe sound stops and the LED screen goes out-these two prompts are in groups of 1 second--this cycle) remind. Vibration reminder in silent mode. 5. Memory mode: After the countdown is over, press the [SPST] key again to display the set time. If you need to clear it, press and hold the STSP button. Short press to cycle the operation again. Precautions: 1. If the user forgets to turn of