Ivation Big Oversized Digital Red LED Calendar Clock with Day and Date - Shelf or Wall Mount Easy to read in bright sunlight as in darkness, comes with 3 levels of brightness. Very convenient for the visually challenged, shows clearly the time and date no need to convert numbers to day and month. Show 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). 1 year limited manufacture warranty