Product Features Recognition TechnologyThrough recognition technology and pupil detection, determined whether driver is fatigued or inattentive according to changes in pupil characteristics. Image SensorUse the image sensor to catch the infrared image of the human face, and analyze and confirm it through the highspeed digital signal proceor. More SafeThrough face recognition, blinking, blinking frequency and realtime detection, voice warnings and alarms to calculate, judge and determine whether the driver is driving safely. Accurate DetectionWarning 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. Wide ApplicationWith rotating ball sucker bracket, can connect the device to any plane and can be used on all types of vehicles, suitable for advanced drivers, drivers and truck drivers to make sure safe driving. Product Specifications - Car charger input: DC 12V / 24V - Car charger output: 5V, 1.5A - Minimum working voltage:4.75V - Minimum working current: 240mA - Maximum working voltage:5.25V - Maximum working current: 500mA - Product working voltge: 5V - Product working current: 320mA - Warning time:1-2 seconds after closing eyes - Viewing angel:60 degree - Interface: USB - Working temperature:-20 Deg.C-60Deg.C - Storage Temperature:-20Deg.C-80 Deg.C - Detection distance:45- 65cm The product uses unique pupil recognition detection technology to analyze the changes in pupil characteristics and determine whether the driver is in a state of fatigue or lack of concentration. Once it is detected that the driver is fatigued or distracted, an alarm signal will be immediately sent to remind the driver