Drive Alert Master
The picture really doesn’t give you a good idea of what this thing is or does, but here’s the deal – the Drive Alert Master works by fitting behind your ear, and emitting a loud, beeping noise to wake you up if your head falls forward beyond a certain angle. Drive Alert’s ergonomic design is comfortable, easy to use and operates on low battery consumption. It’s also popular with truck drivers who spend many long hours on our nation’s highways.
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