Anti-Doze Alert Overall Rating : N/A This product is designed to raise drivers' awareness of momentary lapses caused by sleepiness and tiredness. £9.95 Qty :   Reviews (0) (View All) Share with a friend   < > Product Description                        Description:    * Anti-drowse, anti-doze alert, driver alert  * This product is designed to raise drivers' awareness of momentary     lapses caused by sleepiness and tiredness.  * Worn behind the right ear, it works on the principle of electronic     balance.  * As the driver's head nods below a preset angle, the device omits a     loud alarm signal alerting the driver to take corrective action    (change drivers, take a break or take a nap).  * The product is not only designed for drivers, but is also perfect     for people who need to be on full alert while on duty: security     guards, machine operators, as well as students who need to work     on their posture. Ok