SILENT NOISELESS the second hand moves quietly which doesnt disturb your sleep if put at bedside or draw your attention from what you are focused on doing things,great for people who dislike annoying ticking clock especially during sleep at night EASY OPERATION two AA batteries(not included) operated,just turn the two knobs at the back to set the time and alarm,toggle the side located protruded alarm switch to turn on/off the alarm,great for people who want a simple non digital quartz clock without complicated tricky buttons.non-techy child and grandma could set it,no bells and whistles,simple operation