Small Portable Analog Alarm Clock-- Uses (1) "AA" Battery If you can still tell time on an analog alarm clock--the "big hand-little hand"--method, you might want to stick this light gray retro item on your nightstand or take it with you on a trip because it's small enough to travel. Measures 4" tall with a quartz movement, a second hand and an alarm hand that you just turn. No buttons to hold down to see when the alarm is set for, no flashing when the power goes out and no menu! You buy the one "AA" battery it needs.