Function 1. HD display2. Multi-function subtitle full display3. Night low brightne mode4. Four Alarms5. Hourly Chiming6. Power off memory7.12/24 hours display8. Low energy consumption and low power consumptionPlug-in use, only consumes one kilowatt of electricity per monthSet the time:1-Pre the star key,flashing years or months,pre the UP/DOWN key,dreing to the current year or months.2-After setting ,pre the MOVE key,followed by the UP/DOWN key as above,modified,date and time.3-All parameters after setting,pre EXIT.The whole piont set:Under normal conditions,according to UP health can be opened and closed the whole point timekeeping funtion,when the whole point of the indicating lamp is bright,represent the whole point of alarm open,7-22 will have time each time.Alarm setting:Pre the DOWN key,can set the setting,pre the UP key,can be set to cancel setting time and setting time,After the pre EXIT.Switch between 24-hour or 12-hour display: pre and hold the A button for 5-6 seconds, the 12/24-hour display will automatically switch Product Show Size:27*13*3cmWords Color:Red/Green/Blue/WhiteUSB Cable Length1.8m1. Plastic frame (black frame, black gla is generous, precious and elegant.)2. Oversized hour, minute and second display, day of the week display. (The time is displayed by a 1.8-inch digital tube, which is convenient for viewing from a distance.)3: Function: alarm clock, hourly hour, year, month and day display, week display, temperature display.4. The Gregorian calendar is automatically compared to 2001-2049.5. The week automatically corresponds, and the leap year, large and small months are automatically adjusted.6. (The perpetual calendar needs to be plugged in for use. The built-in lithium battery is used for time operation during power failure, and the clock face does not display)7. Clock accuracy: le than or equal to plus or minus 3 seconds/month8. Power supply: 110V-240V, 50Hz/60Hz plus or minus 15%9. Power: le than or equal to 1.5W