**Supports English, Chinese**The LED Concepts EXCLUSIVE Eismatrix App for iPhone unlocks the full potential of your Halos & Accessories! Functions include On/Off Button, Brightness Control, Timer, Create + Save Custom Colors, and a variety of Modes such as Fade, Jump, and Strobe. You can even set the brightness and color to change with your music. In addition, you can modify the fan rotation speed.Using our exclusive App is not only incredibly convenient, but also memorably badass. We believe life is better without limits.**Operation Instructions**1. Download App to Phone2. Power on acool-RGB Halos3. Open App, Connect, & Control!