REARAND Driver Fatigue Alarm 3 in 1 Inside Sleep Alarm for Drivers Security Guards Nap Zapper Alarm Security Car Alarm System Drivers Security Guards

Feature: Main Function: Anti-fatigue alarm device Alarm Mode: beep , vibration , beep and vibration Use time:last more than 100 hours use after recharge full Safe to use: FFC approved, CE Certified and Without mercury inside Ergonomic design: Compact and lightweight (1 oz) alertme fits comfortably behind ear Use in area : allmotorists including taxi , truck , bus and train drivers （It is also perfectfor people who need to be on full alert while on duty such as security guards ,machine operators , and even students .） Angle of the protection:15°~20° Product size:30.7*25.5*7（in） How to use： 1、Hold the button for 3 seconds to turn on the Driver Fatigue Alarm . 2、Switch the alarm to the mode which you need . ( 3 kinds of alarm ,optional ) 3、Movehead to upright position . Placecorrectly behind your right ear .（Start nodding not more than 15-20degrees until it works.） 4、Remove device and turn it off when not in use .(If you stop using it momently , youcan switch it to the sleep mode .keep away from high temperature & direct sunlight .) Package Content: Driver Alarm*1 Car Charge*1 Wall Charge*1 USB Cable*1 User manual*1