Smart Spiral christmas tree pathway lightsWith 16 million light colors and 80 light modes, which can be controlled by mobile APP or remote control to meet the needs of different scenes and personal preferences, and you can also DIY any blinking mode to provide you with an unparalleled decorating experience!The Wonderful Light Show are Perfect for Christmas Outdoor Decorations. Group Control By adding smart christmas pathway lights to a group through the app, you can achieve lighting synchronization or transition effects. A group supports up to 4 christmas pathway lights set 4*4=16pcs .Due to the connection via the app and Bluetooth , there may be a slight delay in achieving synchronization effects. Restarting after using for a period of time can reduce lag. Timing function & Sync with music: you can set a schedule to automatically open or close it at a fixed time. The Christmas Window Lights controller has a built-in highly sensitive microphone, which can make the lights of the light string change with the surrounding sounds.