?Warm Tips?The digital alarm clock works electric USB only, and we don't inclulde the Power Adapter.The CR2032 battery just for memory time, the battery don't support alarm clock working power. If you have any questions, please feel free to contact us. ?Plug in Clock/Battery Backup Settings?The LED digital wall clock is a plug-in clock, is not battery operated clock, All functions must be displayed by plugging in the power supply. The USB cable is 9.8ft in length. Not include adapter!!! (Please note that the digital alarm clock works electric USB only, and the battery just for memory time!). ?Wall Clock & Desk Clock?The electric wall clock features 3 equally spaced keyholes for easy mounting on a wall. Two foldable stands is also present at the back, to easily prop it on top of the table.NOTE: There is an insulating sheet in the battery of the remote control, you need to remove the insulating sheet during use, otherwise the remote control will not work. ?SNOOZE & 7 Country Languages?Digital wall clock just has 5 mins snooze time, the total has 4 times(including the first time ring), The Snooze time cannot be set. Digital data and time clocks have 7 languages: the US, UK, German, French, Spanish, Italian, and Dutch. ?4 Level Adjustable Brightness ? The Alarm clock for the bedroom has a 4-level adjustable brightness display, you can easily set the screen to your favorite brightness by using the remote control or opening the “Auto photosensitive function” . The lower brightness levels make it the perfect clock for your bedroom without bothering your sleep. ?Auto Dimming?The LED wall clock you can long-press the "SNOOZE" button open the "Auto photosensitive function", then the clock will adjust its own brightness according to the brightness of the environment. In this state, the brightness cannot be adjusted by the remote control. (Please Note: The "Auto photosensitive function" can only be turned on and off by long-pressing the "SNOOZE" button of the alarm clock itself.). ?Remote Controlled 11.4 Inch Digital Wall Clock? The digital alarm clock with 11.4 inches display screen, making it easy to see and read the temperature, date, and time even from a distance. It's perfect for large spaces, such as gym shops, warehouses, garages, classrooms, Lobby, office, conference, as well as your living room, bedroom, kitchen, etc.