1.Five display modes:Clock,Date,Temperature,Night,Alarm Mode.2.Anti-disturbance mode at night:In the non-setting state,you can press and hold the -on for more than 3seconds to turn off the display screen to prevent the screen from interfering with sleep at night.After entering the screen-off mode,you can press any key to turn on the display.But the voice control can'tturn on the display.3.Power saving function:In battery power mode,when there is no operation,the display will automatically turn off and enter the power saving mode.4.Three levels of brightness can be adjusted5.Automatic brightness adjustment function:18:00-6:00 brightness automatically dimmed6.Time memory function:3*AAA (shipped without battery)7.Voice control function:when only using dry battery power supply,the display screen can be turned on by voice control.8.When USB power is powered,the alarm clock is always on.DC5V 1A