Key Features：

1. 16-Core Pure Copper Design – Comprehensive Sound Enhancement – High-purity copper conductors make high frequencies clear, mid frequencies meticulous, and low frequencies full. Significantly increases voice density and high-frequency extension – a complete sonic upgrade for your earphones.

2. Premium Build Quality – Metal-Plated Connectors – Connectors made of metal-plated material for long-lasting durability and stable connections. Corrosion-resistant construction ensures reliable performance over extended use.

3. Multiple Connector Options – Wide Compatibility – Available in MMCX, 2-Pin, and QDC connectors. Compatible with most mainstream detachable cable earphones – easily upgrade your IEMs for a better listening experience.

4. Multiple Plug Options – Versatile Connectivity – Available with 2.5mm, 3.5mm, or 4.4mm plugs. Choose the perfect configuration for your audio source – from smartphones and portable players to balanced DACs and amplifiers.

5. Rigorous Quality Testing – Built to Last – The upgrade cable has undergone comprehensive quality tests including salt spray test, pull test, combustion test, impact test, and more. Certified durability for reliable daily use.

6. Easy Cable Upgrade – A simple, effective way to enhance the sound quality of your existing earphones. Perfect for audiophiles seeking improved clarity, detail, and dynamics.

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