Perfect design compatibility with your for iPhone XS/XR/XS Max/ iPhone 7/iPhone 7 Plus/iPhone X/8/8 Plus, allowing you to enjoy music, enjoy digital life. (Supports iOS 10. 3-iOS 12 or Later) Efficient Transmission and Stable Signal: 100% Copper wire core offers clear crisp sound quality and ensure the stability of transmission for better and comfortable experience. High Quality Metal Joint Produced with First-Class Technology Design: The specially crafted alumina housing makes the product more wearable, high-end and enhances anti-jamming capability.