These earphones have an architectural structural design with high-quality graphene dynamic speaker system, accurately analyze bass, mid and high frequency details, and restore sound texture with high fidelity.2. The Bluetooth chip has the characteristics of high performance, high sound quality, low power consumption and high stability, allowing you to enjoy wireless freedom without worrying about the continuity of sound transmission.-Their Comfortable human ear wearing structure, CVC voice call noise reduction technology, noise cancellation, better listening to songs/calls.4. Ergonomically designed, fits the ears tightly, even if worn for a long time, you can enjoy a comfortable experience, and can form a stable triangular support with the ears, even if you run and ride , vigorous fitness always fits the ears, and you can't get rid of it.