"+ Inside the Box: Heavys H1H Headphones, 2 of Selected Shells Design + 2 Heavys Original Shells, Aux Audio Cable, USB-C Charging Cable, Premium Protective Travel Case. + Shells are Limited in quantity, you can mix & match shell designs and Snap-On the external side of the ear cup. All Artist Shells are Official Designs approved by the Artist + World’s first headphones built for Metal Fans and mimic live music + Immersive natural sound field powered by 8 drivers with patented placement + 5 microphones, 50 hours of battery life, Bluetooth 5.1, noise cancellation, super comfortable design, transparency mode + Free Shipping on orders over $250"