Avatar Controls Multi-Function Multicolor LED Plug-In Indoor Christmas String Lights Unlike traditional Christmas lights, the Avatar Controls Multi-Function Multicolor LED Plug-In Indoor Christmas String Lights ($34) have a built-in smart sensor that will change the colour of the lights according to beats of music, different sounds, and even your voice. It's so pretty to watch the rainbow-coloured lights twinkle to the sound of Christmas music! Image Source: lowes.com Avatar Controls Multi-Function Multicolor LED Plug-In Indoor Christmas String $34 from lowes.com Buy Now