【Large Digital Display】The digital clock is equipped with a 9.1" LED display, a large digital display and the numbers are moderately spaced, clear to read, allowing you to check the time clearly even from a distance and from any angle. In addition, you can see the numbers on the screen clearly even at night. 【3 Alarm Modes】This digital alarm clock can not only be hung on the wall, but also placed on the desktop, providing a good vision for the elderly, children and adults, and get the time information accurately and clearly. 3 alarm modes to choose when you want to wake up at a specific time: 1-5 for alarm Monday to Friday, 1-6 for alarm Monday to Sunday, 1-7 for alarm Monday to Sunday. 【Adjustable Brightness & Automatic Night Mode】This large LED display alarm clock comes with 3-level brightness adjustment according to your needs. In addition, you can also adjust the brightness automatically; it will automatically dim by default between 22:00 and 06:00. In addition, the plug-in LED digital wall clock supports daylight saving time. 【2 Groups of Alarm and Snooze Function】 2 Group Alarms allow you to set separate wake-up times. When the alarm sounds, long press any button to turn off the alarm and enter the next alarm state. Short press any button to start snooze. Note: The \"long press\" mentioned above is a long press that lasts for 3 seconds, and 5 seconds without action will automatically patronize the output. 【USB and Battery Powered】 The LED digital wall clock is powered by 3 AAA batteries (not included) or USB cable (included). NOTE: We only use the battery, it will have time memory function and voice control function, but only use the USB cable, it will not have both functions. You can choose to use USB charging if you want the alarm screen to always be on. 1 2 3