Pure copper for pure sounds The LT-TCA1 is made of a pure copper core shielded by braided exterior, allowing your audio signals to be transmitted as clearly as possible through the cable. Robust braided construction The sheath of the LT-TC1 is composed of a multi-strand cotton mesh that effectively can take the abuse of constant wear and tear. The LT-TC1 measures 12cm, long enough to be practical but yet also at a comfortable length to easily carry around. Aluminum alloy connectors Both USB Type-C connectors are a of a straight design made of carefully selected alumium alloy which provides not only a cool and refreshing texture but also is durable enough to take lots of connections and disconnections. Specification Model: LT-TC1 Cable length: 12cm (excluding plug) Cable material: Cable is made of a pure copper core wrapped in a thin yet tough fireproff sheath. Type C Plug: Straight, which are made of aluminum alloy Function: Charging and data exchanging Supported device: FiiO M-Series Players/BTR-series Bluetooth amplifiers/K3 AMP and DAC, other USB Type-C interface devices.