Usage Tips:16.5' led digital clock: --- This digital clock has 4.84 inch (12.29cm) large clear digits, making it easier for you to read this digital alarm clock anywhere in your home. the room. This large digital wall clock can display time, date, month, day and temperature, bringing you a clear and comfortable visual sense. Great choice for home decor, office, classroom, gym, elderly and visually impaired. Automatically/Manually Adjustable Brightness: --- The led digital alarm clock radio features a a 4-level adjustable brightness display. You can manually adjust the digital clock to a comfortable brightness using the remote control, so you can use it in your bedroom. The digital alarm clock can also automatically adjust brightness as light changes, it won't be too bright at night. Also, you can turn it off if needed. Multifunction Led Wall Digital Clock/Timer: --- This digital wall clock has 3 modes: timer, alarm clock, clock. You can just press the mode button to switch modes, easy to operate. User-friendly design. 12 or 24 hour display formats, or indoor temperature display formats, meet your different needs. What's more, it also comes with a backup battery (2 AAA) in case of power failure. Timer with Remote Control: --- The remote control helps you easily set the digital wall clock. The remote control distance can reach about 32 feet. The available time period of this digital clock is from 0 to 29 h 59 min 59 s. There will be 90 seconds of DIDI ringing at the end of the countdown. Due to the memory function, the timer can remember your last setting if you haven't turned it off. Digital Wall Clock and Digital Alarm Clock with Power Plug: --- The digital alarm clock has a power plug, so you don't need to change the battery often. The two hanging holes on the back make it easy to hang the digital alarm clock on the wall. There is also a foldable stand behind the digital alarm clock, which can be placed on a table or shelf. You can easily set the clock via the buttons on the wall clock or the remote control.