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FREE SHIPPING via Cellular Factory Coupon Code 1VFXO8
* 100% brand new and easy use.
* Works on the study of human body balance.
* Low power consumption.
* Easy to use and comfortable to ware for a long time.
* Just place it behind the right ear.
* It works on the electronic balance which means that when the driver's head nods below a preset angle, it will emit an alarm signal to alert the driver to wake up and get rid of any accidents.
* Keep you safe
* Drive away drowsy
* On/Off switch
* 'Beep' sound will emit when the user's head nods more than a 30 degree.
* Powered by 1 button cell battery (included)
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