【CONTROLLED BY APP, REMOTE & CONTROLLER】 The LED strips are 15m long, each roll is 7.5m. They can be controlled by the app called HappyLighting to choose from 16 million colors, music and microphone sync functions, 20 style modes and timing setting. It also comes with a 40-key remote and controller. 【MUSIC & MICROPHONE SYNCHRONIZATION】 The LED strips have a very sensitive built-in music synchronization function. With the Lotus Lantern app, when you play the downloaded songs or select the microphone mode to play music outside, the LED strips will change color according to the beat of the music. Ideal for creating a festive atmosphere. 【TIMING MODE & 20 STYLE MODES】Swipe up on the rectangular area of the app to select the light strip. You can preset times so the lights can be turned on or off automatically on time. And you can choose from 20 style modes with the app or different modes with the remote control. Also, you can adjust the brightness or the speed of the lights with the remote