Specifications: 1) Display pixel: 7 x 21 2) Capacity: displays up to 253 characters in English only 3) Scrolling speed: 5 steps adjustable 4) Battery life: 15 - 20 hours for continuous use 5) Dimensions: 60 x 80 x 5mm 6) Display window dimensions: 18 x 70mm 7) Color available: red, yellow, blue, green 8) Power supply: 2pcs CR2032 button batteries 9) Edit style: by computer (USB) 10) Contents: LED name badge, USB data cable, software, 2pcs of CR2032 button batteries 11) Series of products: a) 02-bonding LED series b) 01-SMD LED series