【4 Levels of Brightness Adjustment】 The digital wall clock features 4-level adjustable brightness, allowing you to manually set it to your desired level. The LED clock has an automatic light sensor that intelligently adjusts brightness based on ambient light conditions. 【LCD Display】 This digital wall clock has a large screen and clearly displays date and temperature information to ensure you are up-to-date at a glance. You can easily see the current time without having to get close. 【Countdown Function】 The LED wall clock features both count-up and countdown timers, offering convenience for your daily life and study schedules. 【Snooze Function】 The clock also comes with a snooze function, allowing you to enjoy a few extra minutes of sleep. 【Memory Function】 The wall clock has a memory function, ensuring that time data remains intact even during power outages, eliminating the need for resetting. The 2* AAA batteries (not included) only provide memory functionality and cannot supply power.