Headset manufacturers, said headphones wire generally include: Kevlar fiber, enameled copper wire, insulating layer of three parts.
1. Kevlar (KEVLAR) of the last century 60's invented by the United States DuPont, DuPont is a registered trademark of the United States. Kevlar fiber is an important material to protect our headset line, with high strength, high wear resistance, high tear resistance.
Careful friends may find that when the headphone cable disconnected yellow fiber yarn, the fiber is Kevlar fiber, if not found, then it is likely that businesses cut corners, especially those cheap headphones basically will not Plus Kevlar fiber, such a headset to use a few months there is no sound. Even if there is Kevlar fiber, but also sub-domestic and imported it, good or bad is not allowed to say, you understand. Simply put: Jerry, shoddy, which is easy to break the headphone line one of the reasons.

2. Enameled copper wire refers to the bare copper wire surface coating thin paint (from the role of insulation) of copper, mainly used in motor and other home appliances and industrial areas, but also used in headphones, on the market in addition to high-end headphones and enthusiasts pursue Is silver-plated copper wire, all using enamelled copper wire.
Enameled copper wire diameter is 0.05mm, but each headset manufacturers use the core line is not the same, only a few core (poor), and more than 30 core, generally used around 20 core. The more the number of cores, headphone cable life will be long. Conversely, the shorter. This is the second reason.

3. Headphone cable external insulation layer is generally referred to as the skin, using PVC, TPE and so on. PVC is widely used in low-end headphone products and not environmentally friendly, TPE is the most common in the market, it has high elasticity, flexibility. When we use TPE headphone jacket material when the problem is easy to dirty, yellow, easy to break, winding, sticky and a series of problems. One side is fragile to protect, while protection is easy to dirty. We still need to balance, biased in favor of the side is prone to problems, only to find a balance can solve the problem.