Esky 170 Degree Viewing Angle HD Waterproof Car Rear View Camera with Radar Parking Sensor 2-IN-1: backup camera with shockproof & anti-freeze radar parking sensor EASY TO INSTALL: no drilling required, much flexible mounting options with included 3 hard plates in different tilting angles 170 VIEWING ANGLE: allows you to see your blind spots, anti-freeze, waterproof, and shockproof radar sensor with a range of 0.3 to 2.0m HIGH VOLUME BUZZER ALERT: the closer the obstacle, the louder and faster the sound alerts HD PICTURE QUALITY: high definition color CMOS to eliminate blind spots, intelligent light source adjustment, nice image shooting effect at night or cloudy days