Adjustable Brightness: Our bedside alarm clock features adjustable brightness levels (Bright/Medium/Low) which you can easily control with the "SNOOZE/LIGHT" button. Additionally, the clock's night mode features automatic dimming from 18:00-7:00, or you can set another period of time to suit your needs. Memory Function: Our digital alarm clock is powered by a USB power cable, giving you the flexibility to use a wall socket or mobile power supply to power it. And with a backup memory battery (included), the clock can remain working normally and remember original time/alarm/snooze settings, so no need to reset it in case of a power failure. Multi-Function Mirror Clock: The mirror surface of this modern clock adds to its beauty and fashion, and can double as a temporary vanity mirror. This clock also features temperature, alarm, and time display functions, making it a multi-functional addition to any space. Colorful LED Mirror Clock: Our large, colorful LED numbers make this digital alarm clock easy to read day or night. With an upgraded monochrome font and multi-color combination design, this clock's perfect color matching is both fashionable and beautiful, making it an ideal addition to any bedroom, office, or other interior space. Projection Alarm Clock: With an adjustable projector (-90° to 90°) and a 7.7 inch ultra-large LED display, our projection alarm clock lets you easily read the time on your ceiling in the range of 9.8-16 feet from the comfort of your bed. Warning Tips:The projector alarm clock can only be projected towards the back of the alarm clock, if forward, the numbers will be reversed.