Bus Rear-view System Brand: Teswell, CE Certificate Contrast Ratio: 300: ... /m2 Compression: 480*234 MOQ:5pcs Bus Rear-view System-TS170Specifications:Features for the Monitor:7' (16:9), ... built-in quad, Single, dual,triple, and quad image and PIP functions availableTwo Video, One Audio inputs, and ... 5-15 mInfrared LED light: 18pcsMirror/normal image switchDistance label selectable to be open or closed