Diastar Big Oversized Digital LED Calendar Clock with Day and Date - Shelf or Wall Mount (16 Inch, Green) Easy to read in bright sunlight as in darkness Convenient and effective for the visually impaired, shows clearly the time and date no need to convert numbers to day and month AM / PM status with a light underneath the letters, no need to guess what the dot stands for No need to be reset if it loses power. Powered by AC adapter (included)