【APP Control Custom Your Lights】Compared with other star tree topper, our smart tree topper can connect with Bluetooth on "Hello Fairy" APP, support App, Remote and Control Box for control, extremely convenient to set this Christmas tree toppers to your visually stunning light display. Use the app to adjust the star tree tops brightness, color, speed, and control multiple tree toppers and Christmas lights across rooms or areas from your smartphone. 【Smart Christmas Star Tree Topper】With over 16 million vivid color options, more than 20 lighting modes and DIY scene modes, music sync, dimmer and scheduling countdown, customize each bulb to display a different color, it can be turned on or off at a specific time makes any setting decor a breeze, jazzing up your Christmas decor. You can choose any time to turn on/off your lights as you want by APP. 【9-Inch 20 LEDs Xmas Star Topper】The 9 inch color changing smart tree topper with 20 LEDs light bulbs, double-sided design, allows it to display in any space, and the built-in lights to be seen from any angle, glittery finish, it shines brightly and elegantly. All colors are available in our Hello Fairy APP, means you can DIY your own colors or pattern to customize your own unique Christmas. It will be the perfect addition to complement your Christmas decor. 【Sync with Music Twinkle Lights】Built-in high sensitivity mic, spectrum with light and colors adjusting automatically base on the ambient sound, just need to put the tree topper on the top of the Christmas tree, It dances gracefully to the music's rhythm, Christmas star tree top sync with music to create a dynamic and romantic atmosphere. 【Perfect Star Tree Topper Christmas Decorations】This smart LED Christmas star treetop is a unique way to accent the lighting on your Christmas tree, also is the most classic and greatest choice for Christmas tree decoration. Not only be a Xmas tree-top embellishing your Christmas tree, but also perfect for party, garden, yard, cafe, bar, office decor, bring brilliant colors and warm Holiday ambiance. 9 INCH Christmas Tree Topper, Snowflake Christmas Star Tree Topper Lighted for Xmas Tree Indoor Party Holiday Decor