Each Jamboo headphone (with hands-free microphone) is manufactured with bamboo on the earpieces, microphone, middle connector, and headphone jack. The cord is woven with cotton thread and styled around a specific nature inspired theme. The method of weaving allows your headphones to be tangle free and fashionable. Just like the songs and genres of music that you listen to, each headphone has its own feel. Now you can vibe to the music and to your headphones. Each Pair of headphones come with a JAMBOO LEASH!