SHARP Twin Bell Alarm Clock - Loud Alarm - Great for Heavy Sleepers - Battery Operated Quartz Analog Quartz Analog Twin Bell LOUD alarm Clock - Trouble waking up? No Problem! The Sharp Twin Bell Alarm Clock is the perfect clock for heavy sleepers, hard of hearing, hearing impaired and hearing loss. Backlight Button - Press the button on the back for a manual-light illuminated dial; glows across the dial for night time viewing Luminous glow in the dark hands -soft, energy-saving.Hour and Minute hands also have illuminated glow-in-the-dark markings for easy at a glance nighttime viewing Battery Operated - Uses 1 x AA Battery (not included) Retro Style, but LOUD alarm clock that is perfect for those who need help waking up in the morning. Battery operated - use anywhere you need a clock!