Vintage Christmas lights garland from the 90s (Bought in 1999) 

This garland was bought in 1999, it was less popular because it didn't just blink, but only to the music. There is a set of certain Christmas melodies. Two channel lines with colors, this is a blue-green channel and a red-yellow one.
The regulator adjusts the volume, as well as bringing it to the end, you can set the permanent glow of the lights.