Rear without reference line TV system: NTSC,if using 4 cameras DVR monitor.need set 1080N.otherwise the video will white and black Metal housing, adjustable lens Camera chips: IMX307 Camera pixel:1920*1080P AHD signal Built in WDR(wide dynamic range) function Camera lens:Glass lens Camera angle: horizontal 150 /Vertical 74 angle Power supply:DC12V Camera Wire length:1.8M+5.2M with RCA connector 4PIN connector wire for bus camera Colour:black+white Material:ABS Package Contents: 1 x Rear Camera(RCA Head) 1set x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.