Bluetooth smart light strings, brings more fun for your party!APP for Bluetooth Seasonal Light with a variety of applications activated by different screen modes. These involve music, timer and 16 functions. This product works with an Iphone and Iwatch. This app only works on devices that are running Bluetooth 4.0 or higher.For iOS devices, running iOS 9.1.0 or higher, it will work if you are using an iPhone 5,5C,5S,SE,6,6S,7 or newer device. Please note that this product will not work on windows based devices.