
60 Minute Mechanical Camera Timer Retro Design Visual Countdown for Cooking Study Productivity






1 : 1-60 minutes countdown function
2 : Rotate the outer ring to select the desired timing duration
3 : 2 volume levels (quiet, loud)
4 : Select the ringing duration (3S/60S)
5 : When the battery voltage is lower than 2.3v, the low voltage prompt starts, 2S/time.