The GLO1 Headphones display three LED colors — red, green, and blue. The GLO2 Headphones can display 6 different LED colors — red, green, blue, crystal, cyan, and violet, as well as flashing and chase patterns. On GLO2 headphone units, the LED colors can be remotely controlled and turned off completely.

Images for reference: GLO2-Example1.jpg, GLO2-Example2.jpg, GLO2-Example3.jpg