【Large Display and Multifunction】Digital alarm clock with large LED display (6.3\"x0.7~1\"x2.36\"), allowing you to see the time clearly at a glance even if it's far from you. Our smart clock has 5 modes: clock mode, date mode, temperature mode, night mode (ON/OFF), alarm mode. The buttons on the back are very self-explanatory, so it's very easy to set up!【Adjustable Brightness】Just press UP/DOWN to adjust the three brightness levels (Bright/Medium/Low). In addition, the bedside alarm clock automatically dims between 18:00-6:00 when in night mode, or you can set other time periods according to your needs. Press and hold the snooze button for more than 3 seconds to turn off the display to prevent the screen from lighting up at night and disturbing sleep. (NOTE: If you use a cable for power supply, the clock will always be on.)【Voice Control and Power Saving Mode】When powered by battery, you get an extra function - voice control, which means you can activate the display by making a little sound like clapping your hands, knocking on the table, or touching the clock. In addition, the LED alarm clock automatically turns off after 16 seconds of inactivity and enters power saving mode, but the system continues to keep normal time and temperature and retains the previous settings.【Weekday Mode; Snooze】There are 3 alarm modes to choose from when you want it to wake you up at a fixed time: Monday to Friday/Monday to Saturday/Monday to Sunday. Just long press \"ALARM\" and then use the \"UP\" and \"DOWN\" buttons to adjust hour/minute/snooze time/weekday mode. In addition, you can get 1~60 minutes of extra sleep by pressing the \"SNOOZE\" button when the alarm goes off, or press any other button to cancel the alarm.【USB and Battery Powered】This dual alarm clock comes with a 1 meter/39.37 inch long power cable (AC adapter not included) - very good for saving battery. And it has a time memory function when charging with AAA batteries. (When powered only via USB, there is no time memory function after the power is turned off).