Don't let this alarm clock's old-fashioned charm fool you-it's the most up-to-date, modern clock you'll ever own! Atomic time piece never needs winding or resetting once you set it to your time zone. Adjusts automatically for Daylight Savings Time. The loud double alarm bells won't stop ringing until you press snooze or off. Uses 1 C battery, not included. Stands 7 1/2" tall with an easy-to-read 4" face.