The thickened aluminum alloy shell is more wear-resistant and has a longer service life.
the gold-plated plug can effectively reduce the transmission loss, further improve the sound quality, and prevent the plug from oxidation.
Foil copper wire is to prevent copper from being oxidized, and a layer of metal tin is plated on the surface to maintain good conductivity of copper.
the tinned copper shielding layer effectively reduces the loss and interference during signal transmission and achieves hi
