1. The copper-silver mixed plating upgrade line not only has the low-frequency energy of oxygen-free copper, the stable sound bottom, but also the high-frequency acceleration of silver wire, rich detail, strong resolution, and bring a purer, transparent and natural sound. 2. Copper-silver mixed plating upgrade line, wide sound field, rich analysis, frequency modulation, and good extension. The high frequency is clear, the intermediate frequency is meticulous, the low frequency is full, and the sound density and high frequency extension are obviously improved. 3. The copper-silver hybrid upgrade line has been subjected to various strict quality tests and is durable. 4. Compatible with KZ ZST / ZS10 / ES4 / AS10 / BA10 and other earphones. 5. Product weight: 15g.
