1. LED time display: The default display of the clock when it is turned on is 0:00 2. Calendar display: The default display when it is turned on is 0:00 on January 1, 2023; the default date display format is M-D 3. The LED time brightness can be adjusted in three levels: (high → medium → low → off, the default is the brightest level) 4. The night light brightness can be adjusted in three levels: (high → medium → low → off, the default is the brightest level) 5. The 12-hour system and the 24-hour system can be switched, the default is the 24-hour system Two sets of alarm clocks: AL1 defaults to 6:00 when powered on, AL2 defaults to 13:00 when powered on Snooze function: 5 minutes by default, 5-60 minutes can be set Night mode: OFF by default, night mode is on and automatically enters low-brightness display from 18:00 to 6:00 the next day, and the night mode time can also be set manually Temperature display: (temperature measurement range: -9.9℃(14℉)-60℃(140℉) error: ±1°C) Temperature unit can be switched to display: ° C/° F Volume adjustment function: 01-03 three gears adjustable, default maximum gear USB output function: When powered by USB TYPE-C power cable, mobile phones or other electronic devices can be charged through USB output Three alarm sounds are available: 1. Bird sounds; 2. Wave sounds; 3. Piano sounds Three alarm days are available: 1-7/1-6/1-5 Screen size: 5.7 inches Power supply: USB Powered by TPYE-C power cord/3xAAA batteries (battery-powered backlight is not always on) Note: Batteries are not included in delivery Colour:A:Black Material:ABS Size:17.4x7.2x8.4cm Package Contents: 1 x Mirror night light alarm clock 1 x USB Charging Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.