Examine whether it is in normal operation: it beeps when you are leaning your head forward and makes no sound while sitting straight, it is at normal stare.
Please turn off the switch when you do not use it.
Keep it away from high temperature and damp.
Color: Black
Description:
For drivers, long distance truck drivers, road trip safety, late night workers, security guard, etc
Driver safety alarm can help prevent accidents caused by driver's sleep when driving
