1.[180 Projector Alarm Clock] This adjustable 180 projection clock, which can project ultra-clear time onto ceiling or wall within the distance range of 2-5m, and comes with 3 adjustable projection brightness. Easy to grasp the time while in your bed without touching anything. Notes: The projector alarm clock can only be projected towards the back of the alarm clock, if forward, the number will be upside down 2.[USB Charging Port & Memory Function] This Large LED digital clock includes a USB output interface, allow you to charge cellphone, tablets and other electronics devices when you charge the LED alarm clock. In addition, the projection alarm clock is built-in backup battery(included), which can remember the time settings even during a power outage. NOTE: the usb charger not included. 3.[Adjustable Brightness & Night Mode] There are 4 level adjustable brightness meet your requirements. You can adjust brightness or set clock in Night Mode. In night mode, it will automatically enter the low-light state at night from 18:00 to 5:59 by default. 4.[Easy to Operate & Wide Application] With its unique design, updated features such as temperature and humidity display on the same screen, 12/24H, date function, USB charging port and modern design, our LED digital alarm clock can be a gift for your family, friends, kids. 5.[Warm Tips]LED screen is always on when using the USB cable Plug not included; Built-in coin cell battery.