We are one of the wholesale suppliers and importer of anti sleep alarm. An anti sleep driving alarm is fitting well over the driver's ear. Such gadgets sound warnings beep or alarm within the driver's ear once his head droops forward at the wheel. They run on easy DC circuits with batteries that may get replaced once exhausted. They are value effective and simple to handle, being the scale of a Bluetooth ear piece. Such devices have ensured road safety, operating as straightforward to hold doze alerts.