About the product 1. Brand new and high quality. 2. Controller Remote is with 1 x CR2025 button battery inside. 3. With a remote controller, the RGB LED Light Strip can easy to change the color of the light 4. Effect: 300 kinds of variations, you can program any combination of 16 effect function; 5. Maximum number of control points: 2048 points 6. Remote control distance: 10-30 meters in the open area (14-key multi-function RF remote control) 7. Suitable for the RGB LED Light Strips that their IC is WS2811, 2812, 1903, 6812, LPD6803, etc series.