Fangrui Product Details 1. F4 Study Timer Kitchen Cooking Countdown Reminder Multifunctional Digital Alarm Clock 2. Material: Abs 3. Battery Capacity: 500mah 4. Working Temperature: 0-50 Degrees Celsius 5. Standby Power Consumption: 20ua 6. Sleep Power Consumption: 150ua 7. Working Current: 11ma 8. Charging Current: 500ma 9. Volume Level: Mutevibrate (loud 90-100db, Quiet 70-80db) 10. Timing: Gravity Mode (5-60 Minutes), Manual Mode (99 Minutes And 59 Seconds) 11. Product Size: 44 X 44 X 46mm 12. Net Weight: 47.5 Grams 13. Packaging: Color Box 14. Instructions: 15. 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. 16. Manual Mode: Set The Button To Mode 2; Adjustable Ms Button, Press The Middle Button Stsp To Start The Countdown 17. Positive Timing: 18. When The Display Is 00: 00, Short Press The [spst] Key To Start Counting; 19. During The Timing Process, Short Press The [spst] Key To Pausestart The Timing; 20. In The Pause State, Press And Hold The [stsp] Key To Clear. 21. Countdown Settings: 22. 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; 23. During The Timing Process, Short Press The [spst] Key To Pausestart The Countdown; 24. In The Pause State, Press And Hold The [spst] Key To Clear; 25. 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. 26. Vibration Reminder In Silent Mode. 27. 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. 28. Precautions: 29. If The User Forgets To Turn Of