DIGITAL CLOCK SQUARE MEDIUM SIZE Dimensions: Length 145 x Width 40 x Height 70 (mm) Operating specifications: Operate with 3 AAA battery (not included) Power consumption: 3V How to use : Product Components: A digital clock that complements home interior decoration. Please read the user manual before using this product. Time Setting: Press and hold the TIME button while pressing the HOUR button to adjust the hour or the MIN button to adjust the minutes. The default time format is 12-hour (AM/PM). You can switch to 24-hour format by pressing the HOUR button. Alarm Setting: Press and hold the ALARM button while pressing the HOUR button to adjust the hour or the MIN button to adjust the minutes. Use the AL. ON/OFF button to turn the alarm and snooze mode on or off. The alarm will sound for 60 seconds. While the alarm is ringing, pressing the SNZ, HOUR, or MIN button will stop the alarm and activate snooze mode. In snooze mode, the alarm will ring again every 8 minutes. Pressing the TIME or ALARM button while the alarm is ringing will stop the alarm completely without activating snooze mode