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- Put it behind your right ear, Alerts when the head lower in the degrees of 15-20 degree.
- 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 driver's sleep when driving.
- It is especially suitable for long-distance driving or night driving.
- It is guardian angel for drivers.
- Easy to use and comfortable to wear for a long time
- Weight :Approx 14 g
- Size : Approx 5.8 X 5.3cm
- 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 swith and put it away when you do not use it
- Keep it away from High temperature and damp