The Drive Alert Master is a great gadget that will help you stay awake. As soon as you try to fall asleep it will wake you up. It is a very effective way to keep you awake. It will save your life if you fall asleep while driving. Actually it worked for me once too. I was driving home at 12 a. m. and I really wanted to sleep. The lights of the cars driving towards me made me fall asleep and the Drive alert gadget saved me.
How it works? As soon as you fall asleep and you had falls forward the drive alert master emits a very, really, LOUD BEEP that will surely wake you up. This gadget does not need much power and it is powered by only one battery.
All you need to do to make it work is just turn it on and place it behind your ear. It is very light weight and it feels just like some ear buds or something like that. You will not even feel it on your head. It has an angle meter and when your head falls forward the angle meter triggers off the alarm. You can adjust the allowed angle to turn your head. The alarm signal if very loud, it's like a splash of water in your face.
I think that a lot of drivers all around the world might use this wonderful gadget because it literally saves people lives. People like truck drivers or taxi drivers should get them because it is a really useful gadget. Most of gadget now days are just some things that we use for fun, however this gadget is the one that is actually useful.
Car accidents are dangerous not only for drivers that fall asleep but for the passengers and the other car drivers too. If you want to feel safe for your beloved people and for yourself you should buy this gadget.
There is one big disadvantage about this gadget. What if your head falls back on the head-rest? If it does that the angle is not that big and the device might not work. Of course you can adjust it to a pretty small angle but then you will not be able to look down and you have to try to keep you head straight. However, I think if you want to be alive and not fall asleep you can sacrifice your comfort.