Sustainable and stylish, both the earbuds and charging case of the Rebel True Wireless Earbuds from House of Marley are made from REGRIND natural wood fiber composite. In addition, the earbuds feature a natural bamboo inlay down the entire stem, and the case sports the same bamboo inlay on either side. Even the braided cable is made from sustainable materials, and the packaging is 100% recyclable. On top of them looking good, they are made to sound great, thanks to Marley Signature Sound with Bass Boost EQ modes that you can select for adjusting the low end and sonic texture of your favorite music.: