Compact Size -- Measuring in at 2.6" x 2.6" x 1.2", light weight (2.3 oz), It fits easily into a suitcase or bag during your journey, Ideal compact size for travel. Completely Silent -- This clock was engineered with a silent, continuous-sweep second hand quartz movement. It does not emit a ticking sound. Large Alarm Switch and Snooze -- A large convenient alarm on/off switch is located on top where it is easy to reach. Easy access snooze and light bar is on right hand side of the front, the snooze allows the alarm to ring every 5 minutes until switched off. Light and Luminous Hands -- One light bulb built in the clock, simply press the front button to activate for night viewing. Luminous hands stay visible a while after the lights are turned off at night. Ascending Alarm and battery operated-- Ascending four beep alarm volume increases in four stages until the alarm is turned off or snooze bar is depressed. Runs on 1 "AA" Battery (not included ). Unlimited One Year Warranty!