The MCK741WH is a complete 12~24volt DIGITAL Wireless reversing camera system suitable for small to larger vehicles. Supplied with one camera but capable of displaying up to 4 cameras on-screen at the same time, or individually. A simple solution for you safety requirements. Ideal for trucks, buses, campervans, mobile homes etc Includes 12~24v Quad (4 camera) input 7.0 inch dash/screen mounted Digital colour monitor with detachable sun visor Monitor resolution : 1024*RGB*600 Digital 2.4G Wireless connections The monitor connects Wirelessly to the heavy duty Wireless camera 150 degree diagonal night vision camera - model MC6BWH is standard supplied Camera has inbuilt microphone and is IP69K ( Pixel : 1920*1080 ) Can connect up to 4 wireless cameras Can display 1/2/3 or 4 cameras on your monitor Additional camera part : - MC6BWH NB - Although video signal is wireless, both the monitor and camera's still require 12~24volt power and earth connections.