General description The Big Digital Countdown Days Timer Clock is an upgraded version featuring a larger size and a long countdown capability of up to 999 days, 23 hours, 59 minutes, and 59 seconds. It includes a clock function and allows users to switch between 12 and 24-hour formats, making it versatile for various applications such as graduations, weddings, new babies, retirements, meetings, and study sessions. Technical specifications Countdown time: 999 days, 23 hours, 59 minutes, 59 seconds LCD screen size: 13.8cm x 4cm (5.4in x 1.6in) Overall size: approximately 15.5cm x 5.7cm x 1.1cm Requires: 2 x CR2032 batteries (included) Material: ABS Installation Two placement options: magnet back and movable bracket Usage Easy to set with clear instructions for adjusting time and countdown settings Alarm sounds for sixty seconds when the countdown reaches zero To set the clock, hold the CLOCK button to adjust hours, minutes, and seconds To set the countdown, hold the SET button and