Set of 20 Musical Twinkling LED Icicle Lights Item #73-229-066 Features Color multi-color bulbs / clear wire Multi-color consists of red, green, and blue Number of bulbs on string 20 Spacing between each bulb 9 inches Lighted length 15 feet Total length 15.5 feet Musical lights play 8 Christmas songs Jingle Bells , We Wish You a Merry Christmas , Silent Night , Deck the Halls , Joy to the World , The First Noel , Hark the Herald Angels Sing , and Oh Christmas Tree Lights do not twinkle in time to the music Additional Product Features Super bright bulbs Cool to the touch For indoor use only Requires 3 batteries included Convenient on/off switch located on battery pack No end connector Material s plastic/wire