Product Name: Car Smart Waterproof Backup Alarm Model NO.: TNF003 Main Market: Other Type: Other Certification: ISO/TS16949 Function: Other Voltage: DC 12V Classification: Buzzer DC 24V: Available Market: North America, South America, Australia Alarm When Fatigue: Yes Driving Assistance: Yes Alarm When: Close Eyes, Yawn, Low Head OE Order: Yes After Market: Yes Trademark: JJ Transport Package: Inner Box Specification: 101x71.8x41.5mm Origin: China Product Description This smart backup alarm mounts at the back of vehicles, can adjust its volume based on the surrounding noise levelThe louder the surrounding noise, the louder the alarm beepsIP67 can mount outside the vehicleOperating Voltage12-24V DCRated Current<250mASound Output75-120dBIntermittent Frequency60 - 120 C/minDust & Waterproof RatingIP67TerminationFly LeadsWorking Temperature-40°C ~ +80°CStorage Temperature-40°C ~ +85°C