Specifications: Display: 6.5" LED Brightness: 3 Adjustable Time Display: 12/24 hours Date Display: Snooze Function: Adjustable 5-60 minutes USB Charging Ports: Designed with a 5V 1A USB output interface. Battery: AAA dry battery (Excluded) Night Mode: Auto show low brightness at night time. (night time: 18:00 - 6:00） Operation settings: Press the MODE button to switch the following order to enter the corresponding function: Clock mode—Date mode—Temperature mode—Night mode ON/OFF Time setting: Press the MODE button to enter the clock mode, long press the MODE button to enter the setting state, and adjust through the UP/DOWN button. Setting sequence is: 12/24 hour conversion-clock-minute Date setting: Press the MODE button to enter the date mode, long press the MODE button to enter the setting state, and the button to enter the setting state. Setting sequence is: year-month-day ✿【5 DISPLAY MODES】: This upgraded version the alarm clock has 5 display modes: clock mode, alarm mode, date mode, temperature mode, night mode, which can meet your daily needs. ✿【DUAL POWER SUPPLY METHODS】: It supports USB power supply and AAA battery power. This alarm clock has a time memory function when using AAA batteries; When powered by USB alone, there is no memory function after power off. Note: When using battery power, please turn on the power-saving mode (the display will automatically turn off after 16 seconds of no operation), otherwise the screen will always be on and consume a lot of power, which will bring you unnecessary battery costs. ✿【LARGE LED DISPLAY】: This Digital alarm clock comes with 6.5 in large screen and large font so that you can easily read the digital display. ✿【BRIGHTNESS & NIGHT MODE】: Digital alarm clock provides 3 different levels of brightness, which can be adjusted to a comfortable brightness manually or automatically to protect your eyes and save energy at night. ✿【WORKING DAY MODE】: This alarm clock also comes with three working day alarm modes. You can set the time interval: Monday to Friday, Monday to Saturday, and Monday to Sunday.