... . support two-point touch to realize channel switching 7inches Car backup system with quad monitor features: 7’’ Digital Quad Waterproof Monitor, waterproof ... , can recognize down, left, right side “swipe”; support two-point touch to realize channel switching. Support Level 5 LCD ... 4 AV inputs,1 video output, and 1 audio output 7’’ Digital Quad Waterproof Monitor (MO-140D)1. Dimension: 7″TFT-LCD ...