Long countdown timer: up to 999 hours, 59 minutes, and 59 seconds. Upgraded design with larger LCD screen: 13.8 cm x 4 cm (5.4 in x 1.6 in). Audible alarm sounds for 60 seconds when countdown completes. Built-in clock function with 12-hour and 24-hour format selection. Simple one-button operation for easy setup. Dual placement options: magnetic back and adjustable stand. Versatile use: vacation, wedding, baby announcement, retirement, meetings, study, and more. Clock Setup: - Press and hold CLOCK button until hour digits flash. - Use UP/DOWN buttons to adjust hour. - Press CLOCK again to move to minutes, then seconds. - Press CLOCK once more to confirm. - In clock mode, press DOWN to toggle between 12-hour and 24-hour format. Countdown Setup: - Press and hold SET button until digits flash. - Use UP/DOWN buttons to adjust hours, minutes, or seconds. - Press SET repeatedly to cycle through settings. - Press UP to start or pause countdown. - Press and hold UP + DOWN simultaneously to reset to zero. Power: 2 x CR2032 batteries included. Color: Black. Material: ABS. Dimensions: Approx. 15.5 x 5.7 x 1.1 cm. Package includes: 1 x Digital Timer Clock. Note: Actual color may vary slightly due to screen settings and lighting. Measurements may vary by ±1–3 cm.