... 4, 700 brightness 40inch 3x3 lcd video wall with 5.3mm narrow bezel,seamless lcd video wall :1),lcd video wall detailed parameters: Features1 ... ,Provide a control software system with Chinese-English languages swift;15,Support software upgrading online;16,Built-In 1G CF Card ... Capacity up to 16G )2,company show:3,Certifications: 3x3 lcd video wall with 5.3mm narrow bezel,seamless lcd video wall