BY-J Toyota Sienna 2011-2020 Blind Spot Monitoring System, 77 GHz Millimeter Wave Radar 12V Universal Car Blind Spot Detection System, Sensitive Radar Sensors Blind Area Detection System

["【Warning Alarm Function】This Newest Blind Area Detection System uses the most sensitive 77GHZ millimeter-wave radar Sensor, no matter it's night time, in rain, in fog or even in the snow, whenever there is a moving object pop into the rear of the vehicle, with the aid of LED blinking, buzzer sound to remind the driver.","【Long Detecting Distance】When the system is on, the system would start detecting moving objectsobjects in the blind area behind the vehicle 26*230 ft.","【Warning Alarm Function】With radar detectors, no matter it's night time, in rain, in fog or even in the snow, whenever there is a moving object pop into the rear of the vehicle, with the aid of LED blinking, buzzer sound to remind the driver.","【6 Assistance Features】BSD - Blind Spot Detection; LCA - Lane change assistance; DOW - Open door warning; RCTA - Rear Cross Traffic Alert; AOA - Active overtaking warning; Follow-up warning for B-pillar driving at the same speed; Help drivers avoid the side crash accident more effectively.","【IMPORTANT】Can install on cars with a plastic bumper only, not work with vehicles with a metal bumper as metal bumper will interference with the radar sensor. This item fits for most DC12v sedan, compact, SUV, MPVs, pickup etc and professional audio installer installation is required.","Customer Service: If you encounter any problems during installation, please do contact us. We will provide you with the most professional customer service"]