The AcuRite 13.5-inch jumbo wall clock is suitable for any home, office, or garage. The extra-large LCD screen features bold, easy-to-read numbers that display the current hour, minute, and second. The Intelli-Time technology is preprogrammed to automatically update itself for daylight saving time. This indoor wall clock doesn't require charging and is free to be placed anywhere thanks to power from four (4) AA batteries (not included).The clock comes with a one-year limited warranty.