How to distinguish the authenticity of iron triangle headphones?

Generally, the back of the licensed iron triangle has anti-counterfeiting labels, which are khaki. There is an 800 sticker on it. Also, the earphones of the iron triangle are all excellent in workmanship, and there will be no burrs and roughness. Especially where the contours of the earphone unit are connected. Also, the headphone cable is generally not very smooth, but it is very textured, soft and tough. Finally, I have to watch the audition. If you find that the bass is very strong, pass it first, because the style of the iron triangle is easy to analyze, with high frequency bright, medium frequency coarse and low frequency fine. Even if individual models strengthen the bass, it is also a small amount of bass. Finally, the market price of FW3 is around 240. Even if you buy it online, it costs about 200+. Below this price, it is basically a high defense. In addition, don't listen to what merchants say: Taiwan Province goods, parallel imports and Volkswagen bags are all synonymous with fakes. Good luck.