Crescendo Beep Alarm & Snooze - Gradual crescendo of beeps that gently increase in frequency and volume if you do not turn it off. Snooze interval is 5 minutes, and the integrated light illuminates for 5 seconds so you can easily check the time (once manually activated.) Ideal for Travel - With its iconic design and compact size, this classic alarm clock is purpose-built for travel. It features a protective lid with a helpful world time zone map inside. Quiet Precision Quartz Movement - The improved quieter quartz movement ensures silence while keeping precise time. Luminous Tipped Hands + Iconic Yellow Second Hand - The clock's hands glow in the dark, allowing you to read the time without switching on the light. Battery Efficiency - This Clock requires 1 x AA battery to operate however this is NOT INCLUDED. For optimal performance in timekeeping, backlight, and alarm functions, use only NEW ALKALINE batteries.