Ⓢ touch the mark at the top, press the menu button and then made a statement

Through the vertical and horizontal drag to adjust the speed and font size of the match

The LED display.

How to use
Drag to the left: Sentence movement speed or to the left to move posts
Drag to the right: Sentence movement speed or move in the right direction posts
Drag it to the top: to increase text size
Drag it to the bottom: the smaller text size

Sangil media sopeuteuweeogwa making smart high school
Ordinary and making seumateugwa johyeonmin