... speaker alarm Wireless Video transmission Desktop 3.5-inch TFT Monitor video Parking Sensor system > Desktop 3.5-inch TFT display, placed in the upper left ... of the installation of four sensors , The other 2 sensors in front.2)With 8 Sensors> 4 Sensors to show to ... Bi voice prompts classification.4)Wireless Video transmission> Use the 2.4G wireless video transmission, receiver module, replace the video ...