1,Stacking Multiple Modules: The matrix display module with input and output interfaces supports stacking multiple modules. 2,Large Display Range: 16x16 LED matrix specification display module, display range is large and diversified. 3,Red LED Light: The matrix display module is equipped with red LED light, which can display various patterns and characters. 4,Excellent Visual Effect: The matrix display module has excellent visual effect, and the viewing effect of text and graphics is better. 5,Strong Compatibility: This is a matrix display module compatible for Raspberry Pi, for Nordmcu and other development boards. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.