SPC828AMZ - Sharp Battery Operated Analog Alarm Clock Small Easy to Use. bedside, nightstand wake up clock, but also great for travel alarm clock. Completely Silent - Super quiet concise design alarm clock without annoying tick tock sound, ideal for those who need complete silence to fall asleep.Snooze and Light Function– Snooze and light button locates on easy-to-find top place. Press button on top of clock down for snooze function, or to light up the clock face on demand to light the dial momentarily in the darkness. Ascending Alarm function with snooze . Runs on 1 "AA" Battery (not included ).