Features: 1) Display: a) Display area: 48 x 10mm b) Matrix: 5 x 19 c) Number of LED: 95 2) Can store 1 message, totally 120 characters 3) With 7 levels of speed to display, and 7 levels of luminance for adjustment by user 4) Display direction: vertical 5) Data communication: easily input by hand 6) Power supply: 1 x CR2032 or 2 x CR2016 batteries 7) LED colors: red, blue, green, yellow, white, pink, 3-colors mixed 8) Operation time: about 20 hours