Easy control and viewing with the large LCD touching screen with optimal display size. High temperature resistant materials used to withstand various driving conditions. The 6-layer all-glass lenses with infrared optical filter ensures high resolution images with excellent color balabce for day and night rides. Front and rear two cameras record. Loop recording: Do not worry about the memory card will be full, it can automaticaally overwrite old video, save the new video. Monitor after shutdown in the stop mode, when the machine senses the vibration, automatically wake up and start recording.