... inch tft lcd moduleFeatures:TFT LCD module GDN43M03-GTM040HS includes: A/D board: DN-D43AT VER:1.00, 4” digital ... of Brightness, Contrast, RGB Auto Color Balance, H-Position, V-position RoHS compliant ItemSpecificationsUnitModel nameGDN43M03-GTM040HS-XScreen size4.0 (diagonal ... such as Brightness, Contrast, Volume, etc.. Inaddition, it is a shortcut key to decrease the volume value at no menu ...