Come and see our amazing products! The timer is a mechanical timer, so it needs to be rotated clockwise to 55 minutes before use! Then turn it counterclockwise to the time scale that needs to be set. No power supply, manual winding, clear sound. High-decibel ringtone warning, accurate cooking time. The bell will automatically ring when cooking timer magnet rotates to setting time for a mechanical drive. High-decibel ringtone warning, accurate cooking time. Clear scale helps you set the time clearly in minutes. Manual dial to set timings of up to 60 minutes. Kitchen clock timer not only applied in the kitchen cooking time, also applied to children do the homework time, time to dye the hair, apply face film timing, yoga time, take a nap time, the meeting time, experiment time, children playing games timing, timing, etc. Pls confirm further with us if any query about packing info, inventory status and time schedule.