Put it behind your right ear, Alerts when the head lower in the degrees of 15° to 20°.
Especially suitable for long-distance driving or night driving.
ON / OFF switch.
Powered by AG3 button cell batteries(included).
Driver safety alarm can help prevent accidents caused by the driver's sleep when driving.
It is especially suitable for long-distance driving or night driving.
It is a guardian angel for drivers.
Easy to use and comfortable to wear for a long time
Color: Black
Weight: Approx 14 g
Size :Approx 5.8*5.5cm
Usage directions:
Wear it on the right ear properly as illustrated
Turn on the switch
Examine whether it is in the normal operation: it beeps when you are leaning your head forward and makes no sound while sitting straight, it is at normal state
Please turn off the switch and put it away when you do not use it