Fangrui Product Details This Digital Clock Can Project The Time Onto The Wall Or Ceiling, So Sleepers Dont Have To Roll Over When Checking It. The Arm Can Swivel 180 Degrees For Positioning, Getting A Fine. Furthermore, You Can Adjust The Brightness Of Its Primary Display Whenever Needed. This Digital Clock Comes With A 3-level Brightness Dimmer To Ensure Finding An Optimal Setting For Your Sleeping Sessions. This Particular Projecting Alarm Clock For Bedrooms Comes With A Progressive Buzzer Volume, Friendly For Heavy Sleepers Who Wont Get Used To The Sudden Loud Sound. And Pressing The Big Snooze Button At The Top, You Can Get Extra Precious 9 Minutes Of Sleep Till The Next Loop Of This Alarm. The Device Is Also Fitted With Convenient Additional Features Which Is A Unique Backup Battery System. This One Is Vital Because It Can Retain All Settings Even After A Power Outage, And Can Be Used For About 2 Years. This Product With An Adapter To Use, No Battery Power. Sleek And Stylish Design, Packed In A Beautiful Gift. A Great Choi