How to use the APP correctly? APP name is " HappyLighting ", please search for and install the application in Google play or Apple store or via the QR code on the manual/controller. Note: IOS 8.0 or Android 4.3 or later edition required. Your smart device should support Bluetooth 4.0 or later version. Step1: Please download APP “HappyLighting” Step2: Please make sure your phone is Bluetooth enabled Step3: Then strip lights automatically connect to the APP Step4: If the led light strip is not display on the APP, it means the lights is not connected, please close the APP and re-open to check; If still no luck, turn off the phone and re-start it and perform the above 2-3 steps again(turn on Bluetooth-open the app-see if it shows). Color automatically changed according to Music rhythm. Color automatically changed according to Music rhythm.Select MIC page on the APP, choose External Mic.Suggest to select Soft or Disco model. Better to reflect music rhyhm.Get white controller box near Music player, or use the controller as microphone.65.6ft/20M Length LED strip lights 1.You can set your favorite colors and style changes according to your preferences. Just a simple actions to control or turn lights on and off, best choice for your home decoration. It can be used for your bedroom, kitchen, living rooms, TV, computer, cabinet, wardrobe, garden. 2.In each single LED units there are 3 primary LED lights (red, green and blue), which can create a mixture of millions of colors, change to different colors ambience by your mood.