Specifications: 1) LED: 21 x 7 dot matrix 2) Memory: up to 6 messages, 1st message up to 256 characters, 2nd - 6th messages up to 128 characters 3) Selectable characters: 96 programmed characters 4) Scrolling speeds: 9 levels 5) Brightness levels: 9 levels 6) Power supply: 1 x CR2032 button battery 7) Item dimensions: 78 x 42 x 7mm Features: 1) Messages automatically stored when switched off 2) Slim design 3) Dual magnetic and still pins closure backing 4) Fully programmable: no cords, no wires, no software needed 5) Power on / start and off / stop 6) With cancel function 7) Easy to program, simply scroll through the list using up or down keys 8) Certification: CE