Display: Display Aera:76x37(mm)
Matrix: 15*7
Number of LED:105
Can store 6 messages (1 can store 512 characters, 2-6 can store 256
characters) With 9 levels of speed to display, and 9 levels of
luminance for adjust by user
Data communication：Easily input by hand
Power Supply： Two CR2032 batteriesv
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