1. Pure sound quality, large band amplitude, high fidelity noise reduction, and 84 core cable composition 2. Sturdy anti-interference, thickened gold-plated joint, solid pure copper pin, and tight connection interface 3. Accurate cotton mesh weaving technology that is both long-lasting and aesthetically pleasing, capable of withstanding 50 kg of tension 4. Step-type connector that works with all 3.5mm devices, including speakers, amplifiers, MP3 players, laptops, tablets, mobile phones, and headsets. 5. Abrasion and corrosion-resistant metal case with screw thread. Longer SR design to prevent cable breakage