Vender Car Driver Safety Device Keep Awake Anti Sleep Doze Nap Alarm Alert al mejor precio

Description: Put it behind your right ear, Alerts when the head lower in the degrees of 15° to 20°. 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. ON / OFF switch. Easy to use and comfortable to wear for a long time. Specification: Material: PVC Size: Approx. 65 x 25 x 15mm / 2.6 x 1 x 0.6" Package Includes: 1 x Anti-sleep Alarm Note: Usage directions: 1.Wear it on the right ear properly as illustrated. 2.Turn on the switch. 3.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. 4.Please turn off the swith and put it away when you do not use it. 5.Keep it away from High temperature and damp.