LGI Driver Fatigue Alarm 3 in 1 Inside Sleep Alarm for Drivers Security Guards Nap Zapper Alarm Security Car Alarm System Drivers Security Guards ALARM FUNCTION: 3 mode,beep,vibration,beep and vibration.While you feel sleepy and tired during driving,this Driver Fatigue Alarm will make a warn metion you avoid the driving dangerous. HUMANIZED DESIGN:Consummate appearance design,patented product and ergonomic design with high quality ABS+Rubber materials makes a comfortable feeling,would not makes any painful during a long time using(Driving). LONG USING TIME:You will drive for a long time,10 hours? or 20 hours? With this rechargeable fatigue alarm,its working time will last more than 50 hours after full charged. QUALITY GUARANTEE:This Driver Fatigue Alarm is patedted product and sold directly fron LGI Factory.It is at the lowest price with guaranteed quality and professional Pre-sale&After-sale Service. ENJOY ROAD TRIPS VOCATION:Fatigue driving Makes some mistakes that we can not afford all lifetime,This driver fatigue alarm is your safe guarantee of safty and easy driving.It is especially suitable for long-distance driving or night driving.