Feature:1. Through recognition technology and pupil detection, determined whether driver is fatigued or inattentive according to changes in pupil characteristics.2. With rotating ball sucker bracket, can connect the device to any plane and can be used on all types of vehicles.3. Car fatigue driving warning device, suitable for advanced drivers, drivers and truck drivers to make sure safe driving.4. Use the image sensor to catch the infrared image of the human face, and analyze and confirm it through the highspeed digital signal processor.5. Through face recognition, blinking, blinking frequency and realtime detection, voice warnings and alarms to calculate, judge and determine whether the driver is driving safely.6. Warning device can accurately detect the fatigue state of the driver, and send reminders and alarms to the driver in real time to ensure the safety of the driver.Specification:Item Type: Fatigue Warning Alarm DeviceMaterial: ABSCharger Input: DC 12V/40VCharger Output: 5V, 2.5AMinimum Working Voltage/Current: 4.75V, 240mAMaximum Working Voltage/Current: 5.25V, 500mAWorking Voltage/Current: 5V, 320mAFunction: When the driver is fatigued, prompt an alarm in time, when distracted driving (look around), alarm and alarm response time 1-2 seconds after closing your eyesDetection Angle: 60Interface: USBWorking Temperature: -20-60Storage Temperature: -20-80Detection Distance: 45-65cm / 17.72-25.59in (5cm / 2.0in)Weight: Approx. 358g / 12.6oz.Package List:1 x Warning Alarm Device1 x Cigarette Lighter1 x Suction Cup Buckle1 x ManualNote:Turn off the power for half an hour, and then perform calibration after turning on the power.