Clocks, pendulums - Universal - Countdown, clocks, 999 days, clocks, kitchens, laboratories. Highlights Universal Countdown, clocks, 999 days, clocks, kitchens, labs. LBER BIG BIG DIGITAL DOWN DOWN DOWN CLOCK 999 DAYS Count on Clock Timer for Graduation Lab Kitchen | Kitchen Mintres Big Digital Countdown Days Clock - 999 Days Countdown Clock Timer for Building Graduation Labs Long Countdown Time: 999 days, 23 hours, 59 minutes and 59 seconds. It will alarm for sixty seconds when you arrive at your setting number. With clock function. You can switch between 12 and 24 hour systems. Easy to set. Two ways to place it. With net stand and mobile stand. Wide application: vocation, wedding, new baby, retirement, meeting, study, etc. How to set the clock: Hold the clock button until you see the hour clock number start flashing. Press UP/Start or Down to adjust that particular number. Keep hitting the clock to adjust the minutes - seconds. Tap the clock again to start. In clock mode, press the DOWN key to toggle between 12 and 24 hours. How to set the countdown: Hold the SET button until you see a flashing start number. Press the SET button until you get to the number you want to change. Press UP/Start or Down to adjust that particular number. Hold/start or low, the number will change quickly. Keep hitting together until the SN stops flashing. Press the UP/Start button to start or pause counting down. Simultaneously press the UP/Start and Down buttons at the same time to reset to 0. Requires: 2 x CR2032 internal batteries Color: Black/White Material: ABS Size: about 15.6x5.75x1.3cm Package Contents: 1* Clock digital timer Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error allowed is +/- 1-3cm.