[Luminous Wall Clock] This large wall clock features a luminous function and hands. The light lasts for a long time and it operates extremely quietly, without ticking. The four large digits are easy to use for the elderly and visually impaired. (The clock glows in the dark for approximately 3 to 6 hours; the brightness depends on the amount of light absorbed during the day. The light intensity gradually decreases and cannot remain at maximum brightness continuously.) [Easy to Read] This wall clock has four large digits, luminous hands, and a three-dimensional digit design, making the time easy to read even at night and from all angles. This makes it particularly suitable for the elderly and visually impaired. [Silent Wall Clock, No Ticking] It uses a high-quality quartz movement for accurate timekeeping and absolutely silent operation. [Easy to Hang] There is a mounting slot on the back for easy installation; a hook is included. It is powered by one AA battery (not included); please use a standard carbon battery for this. [Battery Operated]: The wall clock's battery is pre-charged. Requires one AA battery (not included).