... display modes:4 images,3images,2images 4.factory warranty This system is suitable for buses,cars,trucks,construction vehicles postal vehicles ... rear ,leftside and rightside of the vehicles,achieving,comprehensive prespective. System is hightly integrated with industrial grade chip,shockproof and dustproof ... ),D1(720*576),4 vedio input,12~24V DC,Size:160*110*35mmCable:5m,15m,20m,25m optional Camera: 1. ...