Features: Time display function,12/24 hours conversion Date function Alarm function,set daily alarm and snooze Temperature function,Celsius/Fahrenheit conversion Measuring range -10℃～+50℃(14℉～122℉) Display mode selection:temperature display mode long press MODE key to switch the display mode,power on default not switching Power saving function:power supply without key operation for 15 seconds automatically turn off the screen,5.0V screen is always on Brightness adjustment function:press UP key to adjust the brightness of two grades Automatic brightness adjustment function:18:00-6:00 brightness automatically dim,and can set the automatic brightness interval Time memory function(driven by 3 AAA batteries,Battery pack not included) Basic operation Power on,LED full display about 2s,then"B"sound into the normal clock mode,the default 24-hour system of 0:00. IN normal clock mode,press the MODE key in the following order to enter its corresponding function mode Clock mode→Date mode→Temperature mode→Night ON/OFF In time and date mode,press MODE key to enter the setting state Adjust the setting value by UP/DOWN key,keep pressing UP/DOWN key to accelerate the value increment/decrement Normal mode press ALARM key to display alarm mode,in alarm mode,press ALARM key to turn on/off Single press ALARM to turn on/off the alarm Press and hold ALARM key to enter setting status in any mode Adjust each setting value by UP/DOWN key,keep pressing UP/DOWN key to accelerate the value increment/decrement Normal time,date,temperature mode,single press UP key directly adjust the brightness of two levels When night mode is on,the brightness will be dimmed automatically from 18:00 to 6:00 Temperature mode,long press MODE key until there is a BI sound Switch to LED rotating display of time,date and temperature,time display 10 seconds Date and temperature are displayed for 3 seconds each;long press MODE again to display normal time Displays real-time temperature,temperature mode press DOWN key for Celsius/Fahrenheit conversion power-saving function:battery-powered without key operation for about 16 seconds automatically extinguish the screen,DC-powered screen is always on Specification: Name:alarm clock Size:as shown in the picture Material:plastic Display type:LED Waterproof:No Package includes: 1*Alarm clock(optional) 1*Charging Cable 1*Instruction manual Note: Includes the above packaged product only,batteries are not included Specifications are manually tested and are for reference only Please refer to the actual condition,thank you