Can't entirely control the driving ambient via unaided naked eyes? Afraid of running into the wall or deviate from the main parking area when reverse your car? Timely knew what happened in an emergency occasion. 140? front ,120? rear and 90?inside wide angle, combined with HDR and WDR technology, eliminate the blind spots of your vision, obtain sharp color image and see the driving details clearly. Parking guide line to reverse and ensure safe parking. Mount on your car, non-shaking and not disturb your car panorama.