User guide

StatusIndicator
- Fast blinking in red: The battery power level is very low and must be charged immediately;
otherwise the device will be powered off.
- Steady on and in red: The battery power level is weak.
- Steady on and in green: The battery power level is enough.
- Blinking: The battery is being charged. If the indicator is in red, the battery level is too low to
power on the device. When the indicator turns green, you can power on the device.