Wireless Anti Sleep Driving Alarm

Alarm function: while you are tired and tired while driving, your head will be tilted. If the overfatigue of the driver is between 15 to 25 degrees, this alarm will give you a warning that can effectively avoid the driving force Easy to use and comfortable to wear for a long time Ergonomic and Light Weight Design.,Alert from sleeping while driving and also use for Study, Office, Worker, Guards. Compact and Handy It is not only good for drivers, it is also perfect for people who need to be fully alert while on duty (eg. security guards, machine operators, night shift operators) Switch on the on-off Button, place it correctly behind ear then it will work. warranty not applicable for this product. Package Included: 1 x Anti-sleep Alarm. Ergonomic design: Compact and lightweight