... the video signal added on TV screen, such as Chinese, characters, simple graphics, etc. Video input signal can be cameras, VCD ... can send SMS to set the size of characters, the content of characters and moving characters display, the device can save Settings. The ... ., LTD.")(2) set letters sizeExample: 123456 # 3 # 2 # (size display characters into 2 times width, 2 times),(3) set letters colorsExample ...