Nap zapper

The nap zapper is an anti-drowsy alarm designed to raise drivers awareness of momentary lapses caused by sleepiness and drowsiness.It goes around the right or left ear, and when your head nods forward, an electronic position sensor will sounds a loud alarm to instantly wake you and your passengers.Perfect for anyone who needs to keep alert on duty, like drivers, guards, machine operators, and even students.Works on the study of human body balance. Feature:1. This product is