Innovation by Simplicity. While other reaction lights are complicated, in execution, charging and programming, Micah Lancaster created the RipLight specifically for simple read and reaction training. No programming. No apps. No bluetooth needed. Easy USBC charging. Just turn on, tap and react. The RipLight's innovation is in its simplicity - created for one purpose - To give players the ability to read and react with no need for setup or programming. Just assign reactions to a color, hit the light, and see how quick you can react. After three seconds, the light will turn off and you can get in another rep. It's that easy. Three Random Vibrant Colors. Plug and Play. No Apps to Connect. No Bluetooth Needed. Long Lasting Easy Charging. No Complication.