T-shirt : • Material: 100% combed cotton  190gm; PVC display window • Sleeves: Short, long, tank top • Neck: Women V, Men O Round • Colours: black or white (custom available min. 50 units per size)  • Women sizes: S, M, L, XL • Men sizes: S, M, L, XL, XXL(180gm)

• Electronic LED display, removable for cleaning
• Scrolling message display of  7x21=147 LEDs, dim.12 x 4 x 0.5cm, weight only 35gm (including Li batteries)
• Stores 8 messages of 256 characters by onboard switches at the back of the circuit or using a PC (via an optional Infrared transmitter sold separately)
• 8 Scrolling speeds, 3 brightness levels, and 8 scrolling modes  (left to right, right to left, up, down,  static (on the 3 first letters of the display window), blinking  (while in the fixed mode or scrolling), "loop" ( 8 sequential messages, each with its own scrolling mode and speed).
• LED lifetime: more than 100,000 hours
• Power supply: 2 Li batteries (CR2032)
• Battery life depends on LED colour.