1. Product length: 0.3m. 2. Wire outer diameter: 6mm. 3. Product material: copper conductor + zinc alloy head 4. Features: Zinc alloy plug, copper conductor, double shielded wire, 3.5mm female gold plated, ultra-thick wire to ensure the transmission effect. 5. Product use: It is used to convert the 6.35mm jack into a universal 3.5mm headphone jack, usually used for power amplifiers, headphone amplifiers, HiFi headphones, earbuds, sound cards and other equipment.