Wooden Digital Alarm Clock Electronic LED Time Display,4 Level Adjustable Brightness and Voice Control, Display Time Temperature Date for Bedroom Office Kids and Families,Black Two display modes: Press button set for 1 second to transform dp-1 to dp-2 or dp-2 to dp-1. And dp-1 means LED screen automatically conversion time, date, temperature and dp-2 means LED screen display time all the time.Very flexible. Sound control functionPress button DOWN for 1 second to transform on:Sd to - -:Sd or - -:Sd to on:Sd, and on:Sd means after 30s no any press, LED display automatically closed, and - -:Sd means LED screen display all the time.This is useful for power saving and sleeping well. Adjustable brightness and 12/24 hour formatPress button UP for 3 seconds and it display L1, then adjust the luminance by button DOWN to darken and UP to brighten.There are three display luminance adjustments and darken from L1 to L3. Press button UP for 1 seconds to transform to or to . 3 ALARMS: After setting time and date by pressing button SET for 3 seconds, you can continue to set alarm clock. There are 3 separate wake-up time to remind you the important dates or appointments. Dual power supplyThis desk alarm clock come with USB power cable or it can be powered by 3*AAA batteries(Not Included) using as a wireless alarm clock so it wont be dead to tell you the time. And it can be used at bedroom or carry it to other place like library, classroom.