Boat Marine Premium XKchrome App Control Interior LED Accent Light Kit for Mastercraft Malibu Sea Ray Supra Tracker Yamaha Tigra Regal Mumba Supra Bayliner Chris Craft Cobalt Boats Smartphone BLE 4.0 app controlled via the Xkchrome App available for download on the App Store and Google Play Store 16 million colors vibrant colors thanks to gamma correction technology & music sync that dynamically analyzes each song for best light effect. Dual zone control. Xkchrome is the only controller out there to give 2 independent zones that you can control simultaneously. 100% waterproof Xkchrome Bluetooth Controller with touch button with preset colors & patterns.