Electronic player substitution board - double-sided model: S04469 INOUT-8 - Double-sided - Letter height: 23.5 cm (visibility about 100 m) - LED diode brightness 6000 cd/m2, lifetime over 2 million views - Colors: green and red - Space for sponsor's logo (45x8 cm) - Built-in battery (fully charged, lasts for about 150 views) - Battery check function - Battery safe function (auto shutdown after a long period of inactivity) - Charger included - Dimensions: 55 x 36 x 4 cm - Weight: 3.25 kg - 2-year warranty Product code: 100305