The Driver Alert is a simple device that could just save your life- or help you keep your job! The small, lightweight device rests comfortably over the top of your ear and will alert you with an audible alarm to wake you if you start to doze and your head nods forward. The Driver Alert is lightweight and comfortable to wear and is fully adjustable. Perfect for sleepy drivers or someone working the late shift and having trouble staying awake. It works great for security guards, machine operators, and even students struggling to stay awake while studying. Button cell batteries are included. The Driver Alert sleep warning device helps prevent fatigue related automobile accidents. If you start to nod off while driving, reading, studying, watching your favorite TV show or other activities and your head tilts forward, the Driver Alert will sound an alert to wake you up before disaster strikes. This lightweight device fits behind your ear comfortably, even if you wear glasses. If you ride the bus or the train it is especially important that you do not fall asleep while waiting for transportation to arrive or even during your trip. Muggers and pick-pockets look for easy prey like that. Use a driver alert to help you stay awake and alert to your surroundings. Do you ever have trouble staying awake while trying to read a book or watching the late show? Driver Alert is the answer! Warning: Never drive when you know you are sleepy. Pull over and get proper rest. Do not rely on a driver alert to keep you awake when you are tired.