Biao Hua Night Vision Car Rear View Reverse Backup Camera Waterproof 170 Degree Wide Angle For Car Monitor It's a night vision camera, you can easily get the clear situation in your back. Display a reversed camera image on the monitor to duplicate the normal view seen in a rear view mirror. Waterproof design, there is no need to concern the rainy days. Compact design, easy to install and operate. With the high sensitivity, you can get rid of the poor rear vision. Dimensions only camera : ca. 16.5mm x 16.5mm x 22mm