--------------------------------------------- International shipping, economy shipping from china,Delivery averages 15-60 business days. Model: BNT113A Headphone Upgrade Cable Wire Material: High-purity single-crystal copper Specifications: Length 145cm / Main cable outer diameter 3.0mm Plugs: Straight 3.5mm / A2DC plugs Features: Improved resolution, transparent and smooth sound with clearer and more layered details, rich midrange, magnetic vocals, and full and powerful bass. In-line Control Version: Compatible with Android / iOS Functions: Answer/Hang up/Pause/Play/Volume up/down/Previous track/Next track Note: Due to differences in various brands and mobile phone software, the specific function definitions of the in-line control buttons are different. Volume adjustment may not be possible on some mobile phone models. The in-line control function cannot be used on dual-port devices such as desktop computers and laptops. Main Cable Outer Diameter: 3.0mm, the outer layer is a nylon braided shock-absorbing mesh, which effectively reduces stethoscope effect, is resistant to pulling and abrasion, is not easy to entangle, and improves durability. Secondary Cable Outer Diameter: 2.0mm, the outer layer is TPE, which is resistant to low temperatures, cold, and frost. It does not harden or become brittle in winter, is resistant to oxidation, and has a comfortable feel.