- Clear Visibility: Featuring a 17-inch HD LED screen with bold 4.84-inch high-contrast numbers, this large digital wall clock ensures easy readability from a distance and various angles, making it perfect for any room or setting. - Auto Dimming Technology: The built-in light sensor automatically adjusts the screen brightness for optimal visibility at all times. For those who prefer a darker environment while sleeping, the brightness can also be manually turned off. - Versatile Functionality: This multi-functional digital clock serves as a clock, alarm, and timer, catering to diverse needs. Easily switch between three modes by pressing the mode button, making it ideal for large spaces such as homes, living rooms, kitchens, gyms, offices, and classrooms. - Countdown Timer: With a timing range of 0-29 hours, 59 minutes, and 59 seconds, the countdown function is perfect for various activities. A 90-second alert signals the end of the countdown, making it suitable for cooking, exercise, classroom activities, or children's time management. - Convenient Power Source: The clock is powered by plugging it into a wall outlet (battery power is not supported). It includes 2 AAA batteries that retain time and alarm settings during power outages. This large digital wall clock combines functionality and convenience, ensuring you stay on schedule in any environment.