* Special introduction to "Sleep Mode, one touch to wake-up":
In order to save battery power, the device will automatically enter into the sleep mode and remember the last settings after being idle for 24 hours without sensing a use. If you need to restart the device,just touch the power button to wake it up. (Note: This function only works under battery-powered status. This feature can save power consumption when the device is not in use for a long period of time while away from home or when the office is on weekend & long holidays.)