Specifications:Display area:48x10(mm)matrix:5x19 number of
LED:95Feature - can store 1 message, total 120 characters-with 7
leve of speed to display, and 7 levels of luminance for adjust by
userData communication easily input by handPower supply: One cr2032
or two cr2016 batteriesLED colour: Red, blue, green, yellow, white,
pink, three colours mixedPersistence operation time: About 20 hours