Features: 1.COUNTDOWN TIMER FUNCTION: Digital alarm clock has countdown timer function, visualize 60 seconds or 60 minutes countdown. 2.INDEPENDENT ALARM CLOCK: Digital alarm clock adopts independent alarm clock setting, two sets of alarm clock can be set to meet different needs. 3.LED DUAL SCREEN DISPLAY: Digital alarm clock has visualized LED dual screen display, hour, minute and second can be seen at a glance, LED digital display can be clearly shown at night. 4.SILENT OPERATION: LED digital alarm clock adopts silent timekeeping design, goodbye to mechanical alarm clock ticking sound, get rid of night noise, let you sleep at ease. 5.MODE SWITCHING: The LED alarm clock is capable of switching between 12 and 24 hour systems, making it easy to switch between different time systems. With time, year, month, day, temperature and other effects display switch. specification:Item Type: Digital Alarm Clock Material: Plastic Battery: CR2032 Battery x 1 (Shipped Without Battery) Input Voltage: DC5V Alarm Settings: Two Sets of Alarms Power Supply Mode: Plug In, Lithium Battery Product Function: Timer, Time, Temperature, Date, Alarm Clock, LED Digital Light Brightness Adjustment Function: Press up Button to Adjust Two Levels of Brightness. Auto Half Brightness Function: The Brightness Automatically Dims from 18:00-6:00, And You Can Set the Auto Half Brightness Interval. Night Anti Disturbance Mode: Long Press Snooze Button for 3 Seconds to Turn off the LED Display PackageList: 1 x Alarm Clock 1 x Data Cable 1 x Manual