Ollny 300 LEDs 99ft APP-controlled Smart RGBIC String Lights are ideal for decorating Christmas trees or festive occasions like Halloween, Thanksgiving, and Valentine's Day. Color Variety & Scene Matching: Select from 16 million solid colors or create your own custom combinations to match any event. Ollny App Control & Creative Lighting: Simply swipe acrossthe virtual string to assign colors and effects bead by bead, bringing your unique lighting ideas to life with ease. Custom Timer & Adjustable Brightness/Speed: Set personalized schedules for automatic on/off operation, and fine-tune brightness levels or flash speed from 0% to 100%. Music Sync Mode for Dynamic Effects: Load your favorite tracks the lights will sync to the beat, perfect for parties, gatherings, or everyday relaxation. Remote Convenience: They also come with aremote control, allowing easy operation even when the app isn't in use.