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, HellBlocker™ noise cancellation, super comfortable design, transparency mode, custom designs Eco-friendly protective travel case included for free Free Shipping over $199 30 Day 'no questions asked' return policy Premium Silver Coated AUX Cable Designed the get the most out of you Heavys headphones. Our Premium Silver Boated AUX Cable ensures a lossless listening experience. Its robust build and high-quality materials provide premium sound transmission, perfect for an immersive audio session.  Key Features: High-quality silver coated for superior sound transmission Durable and flexible design for ease of use and longevity Universal compatibility with 3.5mm audio jacks Minimalist and sleek aesthetic Connectors Headphone side2.5 mm TRRSAmplifier side3.5 mm with screw on adapter to 6.3 mm Cable Material and Length 4 leads, silver cladded copper strands, Reinforcement Kevlar Jacket, Black Polyester, Length 1.8 meters (approximately 5.9 feet)