1: Oxygen-free pure copper, super soft PVC elastic sheath Wire diameter OD: 3.0MM + high-quality nylon mesh2: Main features: very light, fireproof, waterproof, mothproof, mildew proof and crack proof.3: It has good elasticity and toughness, does not crack, deform, or fall off, and has strong durability. Good conductivity, environmental protection and softness.Scope of application:1: Mixer, power amplifier, guitar, effects, equalizer, compressor, crossover, digital decoder, etc.,2: Connect professional microphones to cameras and other equipment, broadcast-grade professional microphones and connections between equipment.3: Stage sound, press conference, KTV, professional amplifier, stage lighting, par light, home theater and other environments.size: 3.5mmMaterial:metalcolour:BlackPackage Contents:1 x Audio LineOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.