Acctim auric LCD alarm clock black super-brite blue backlight am/pm indicator crescendo alarm with snooze dim 52X105X75 Crecendo alarm with snooze function Super-brite blue backlight. Dimensions : 52 x 105 x 75mm Battery operated. AM/PM Indicator. AM/PM Indicator. Crecendo alarm with snooze function. Super-brite blue backlight. Dimensions : 52 x 105 x 75mm.