🌈 🎄 【RGBIC Chip】: 20m/66ft - The LED twinkle lights is able to display multicolor in one line at one time like a rainbow, fire, chasing color etc. Easy to be bent in any shape. Just wrap the light string on a dry surface and start using it. It's a perfect fairy light for your bedroom, party and Christmas indoor decoration. 🎉 🎁 【App and IR Remote Control】: Use phone to scan the QR code on the controller to download the App LED Lamps, connect the light via Bluetooth you can easily change the color and the mode of lights. You also get an IR remote with 24 buttons, the remote control makes it simple to switch colors, patterns and brightness as you like. There are 250+ kinds of music and lighting effects 210+ kinds of special effects + 16 million monochrome effects, you can mark 9 of your favourite effects freely. 🎁 🎄 【Built-in Mic Sync with Music】: As the smart Christmas lights are built-in microphone, the fairy string lights can change according to the beats of the music, different sounds and even your voice. The sensitivity can be adjusted. Both IR remote and App are equipped with many types of lighting effect including energy, rhythm, spectrum, rolling. It enables you to customize sensitivity and colour. 🎁 🎄 【Built-in Mic Sync with Music】: As the smart Christmas lights are built-in microphone, the fairy string lights can change according to the beats of the music, different sounds and even your voice. The sensitivity can be adjusted. Both IR remote and App are equipped with many types of lighting effect including energy, rhythm, spectrum, rolling. It enables you to customize sensitivity and colour. 🎉 🎁 【Widely Used and Safe】: DC5V is safe for children Installation is extremely simple, plug and play. Copper wire is easy to bend into any shape. It is very suitable for Christmas tree, stairs, curtains, garden, ceiling, bar, coffee shop, etc. Best for all kinds of Party and festival decoration such as Christmas, Halloween, birthday, wedding.