This simple patch cable connects your phone or laptop to most audio systems. Minijacks are also known as 1/4? (quarter-inch), or TRS jack (tip-ring-sleeve) and 3.5 mm jack. They carry a “line-level” signal. – 3.5 mm 1/4? (male) jack to 3.5 mm 1/4? jack (male) – Colour: White – Gold-plated connectors – Narrow plug to fit iPhone sockets – Insulation: Double-insulated with Aluminium foil – Sheath: PVC, outer diameter: 3 mm (0.11?) – Conductor thickness: 26AWG – Tinned copper spiral shielding