Nap Zapper / Driver Alert / Treiber Alarm

Drive alert /Nap zapper/Driver alarm/Smart alert Driver safety alarm to help prevent accidents caused by falling asleep at the wheel. Brand new anti-sleep alarm for drivers! Perfect for anyone who needs to keep alert on duty, like drivers, guards, machine operators, and even students Safe for long drive and drive at night. 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. Powerful alarm beep Work on the study of human body balance Alerts when the head loweren in the degrees of 15-20 Powered by 1 x LR44 button cell battery (included)