Feature 1Real-time warning alarm: Once detecting the driver with fatigue or distraction, the device will send an alarm signal to alert the driver. 2Intelligent detection technology: Through identification technology and pupil detection, it is possible to judge whether the driver is tired or unfocused when analyzing changes in pupil characteristics. 3Advanced face recognition: Suitable for all skin types, even drivers with glasses or sunglasses. 4Detection distance and time: 45-65 cm (5 cm) detection range and 1~2 seconds after closing the eyes. 5Main function: It is able to send reminders and alarms to the driver in real time to guarantee the safety of the driver's life and property.Features: Real-time warning alarm: Once detecting the driver with fatigue or distraction, the device will send an alarm signal to alert the driver. Intelligent detection technology: Through identification technology and pupil detection, it is possible to judge whether the driver is tired or unfocused when analyzing changes in pupil characteristics. Advanced face recognition: Suitable for all skin types, even drivers with glasses or sunglasses. Detection distance and time: 45-65 cm (5 cm) detection range and 1~2 seconds after closing the eyes. Main function: It is able to send reminders and alarms to the driver in real time to guarantee the safety of the driver's life and property. Specification: Condition: Brand New Material: ABS Color: Black Detection technology: With identification technology and pupil detection Advanced face recognition: For all skin types, even drivers with glasses or sunglasses. Detection distance: 45-65 cm (5 cm) Observation angle: 60 degrees Warning time: 1~2 seconds after closing your eyes Function: Real-time fatigue warning and alarm Interface: USB Car charger input: DC 12 V / 24 V Car charger output: 5 V, 1.5A Working voltage: 5 V Current: 320 mA Minimum operating voltage, current: 4.75 V, 240 mA Maximum voltage: current: 5.25 V, 500 mA Temperature: -20 C ~ 60 C Storage temperature: -20C ~ 80C Package List: 1 * Fatigue Driving Alarm Device 1 * Bracket 1 * Car Charger 1 * User Manual