Adjustable Brightness - The Digital Watch Has 4 Levels Of Brightness With High Quality Led Lighting. You Can Choose The Brightness That Is Most Easy On Your Eyes. Multi-Function Alarm Clock: 2 Display Modes Of The Digital Alarm Clock Show The Time (12/25 Hours) (C / F) Or The Date Month Of The Year. Perfect Decoration For Office, Living Room And Bedroom. 3 Convenient Alarm Settings: 4 Groups Of Alarm Clocks Can Be Set. You Can Use It To Get A Repeat Function. Best Alarm Clock For Bedroom And Heavy Sleeper. Dual Powered: This Wooden Alarm Clock Comes With A Usb Power Cable Or Can Be Powered By 5 Aaa Batteries (Not Included). Note: Since The Led Alarm Clock Consumes A Lot Of Electricity, It May Run Out Within 3 Days If The Battery Is Used. We Recommend Customers To Use Power Lines. Power Saving And Voice Control: In Power Saving Mode, The Screen Will Turn Off After 10 Seconds, So You Can Sleep Wonderfully. If You Press A Value Higher Than 61 Db Or Hear A Noise At A Short Distance, The Wooden Alarm Clock Will Be Activated. He WonT Bother You.