The audio cable adopts copper core conductor, no loss of transmission sound quality. The connectors are gold plated, which is tensile, pressureproof and dustproof. And it can be used for mobile phones, tablets, laptops, MP3/mp4 and other devices connected to power amplifiers or active speakers with RCA input interface. Features: 1. The outer casing is made of aluminum alloy, environmental and durable. 2. The plug is gold-plated, the wire is made of TPE and protected by fibre web, which is tensile, pressure-proof and dustproof. 3. The conductor is made of all-copper, 0.5-1.8 m without shielding, and 3 m-10 m with copper conductor shield. 4. Adopt copper core conductor to transmit lossless sound quality. 5. It can be used for mobile phones, tablets, laptops, MP3/mp4 and other devices connected to power amplifiers or active speakers with RCA input interface. Specification: Type: Audio Cable Interface Type: 3.5mm (stereo) RCA*2 (left and right channel) Wire Diameter: 3.5mm Weight: 117g / 4.1oz Length: 0.5m, 1m , 1.8m, 3m, 5m, 10m(Optional) Package list: 1 * Audio Cable Note: Please allow slight error due to manual measurement. Thanks for your kind understanding. 1、The outer casing is made of aluminum alloy, environmental and durable. 2、The plug is gold-plated, the wire is made of TPE and protected by fibre web, which is tensile, pressure-proof and dustproof. 3、The conductor is made of all-copper, 0.5-1.8 m without shielding, and 3 m-10 m with copper conductor shield. 4、Adopt copper core conductor to transmit lossless sound quality. 5、It can be used for mobile phones, tablets, laptops, MP3/mp4 and other devices connected to power amplifiers or active speakers with RCA input interface.