Dc12v 12a Bluetooth LED Music RGB Controler Wireless Ios/android Bluetooth for Motorcycle or Auto APP RGB Bluetooth LED Music Controller with Smart Phone Control easy use ,need scan and download App first can achieve switch light,adjust brightness chang color .There are 16 million color colors and dozens of light changing modes Play music from the app and have the bulb change colors automatically. Choose from normal, Jazz, Rock or Classical settings to control the transitions