Prevented sleep when driving.
Guarantee highway safe driving,efficiently prevent drivers from bringing the passenger to dangers because of weary condition.
For pilots and drivers in the vehicle,the anti-sleep alarm is the best choice for preventing weary driving.
Like chart hangs equally on the right ear.
To inspect whether, normally, front the slient forehead depends on when slight the best posture makes(toot toot)the sound is the normal state.
Needs to close when turn off the switch to take care of.
To avoid the high temperture well moist storage
1X Anti-Sleep Alarm