We’ve already seen the sleep warning glasses for studying and whatnot, but what about a situation where staying awake is a life or death situation? Luckily, we now have the Drowse Prevention Alarm! Stick it in your ear, fall asleep at the wheel, and drop your head more than 10 degrees. BEEP!!! You’ll wake up just in time to minimize the number of casualties. Made by Revex, the alarm has a high and low volume setting, and costs just 1,200 yen (£5.30/$10.30).
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