find a good travel alarm with a digital display should not be difficult , but I have go through a number of other clock that be unsatisfactory . one have a design very much like this one , but the switch be flaky ; if you try to set the alarm , it would irregularly oscillate between display the alarm and the time . another have a folding cover but leave button expose in back ; when I arrive at my destination , I often find that the button have be depress in transit and the time have be reset . the Westclox # 47508 travel alarm do not have these problem , and have work perfectly so far . as other have note , the light be dim and remain on only so long as you press the button . the alarm ring for one minute , and you can snooze indefinitely for four-minute interval -lrb- although I wish the snooze be a bit longer -rrb- . the button and switch be simple and intuitive . it run on a single l1154 button battery . this battery type go by various name -lrb- alkaline a76 , lr44 ; silver oxide e357 , 10l14 , ms76 , sr44 -rrb- , and be one of the easier button battery to find in store . the clock be compact and appear sturdily make .