Used 1 or 2 times. DD ddHiFi TC09S Double USB-C (Type-C to Type-C conversion) OTG Apple 15 Android USB-C Plug HIFI Dual Shield Decoding Audio Signal Upgrade Cable The improvement in sound quality is obvious. Used with a mobile phone or computer as a front-end player, outputting to a decoder amplifier via USB power. If the voltage is low and the current is small, wouldn't the cable's role be limited? Refer to the answer for the Nyx earphone cable for this question, and now, with the release of the new Nyx cable series, the answer is the same: the improvement is obvious. Double-shielded data line structure. The shielding structure design of the Nyx signal line is not suitable for data lines. Data lines include the co-transmission of current and digital signals, and the stability of current transmission depends on the number and purity of the conductors. The transmission stability of digital signals also requires good conductor purity and a reasonable aperture structure. In addition, there is something even more important: the design of the shielding layer. The Nyx cable series products have developed a double-shielded parallel structure, separately shielding current and data transmission. There is also a distinction in appearance. The overall silver shielding outer layer is for power transmission, and the silver and black intersecting shielding outer layer is for data transmission. Weight/Length: 13g/10cm Plug: USB-C OTG Plug Note: To meet market demand, the plug shell of the TC09S OTG cable has been changed to a metallic titanium color, but there is no change to the product's performance or other materials. At the same time, the glossy silver plug version of the TC09S will be discontinued. Please understand that the old and new versions will be switched naturally. Thank you for viewing.