Feature:1. Easy to Use: RCA sound connector is available in wire diameters up to 9 mm/0.4in. The connection is soldered.2. Wide Usage: RCA sound plug for signal cables, sound cables, coaxial cables, etc. for professional sound equipment.3. Superior Sound Quality: RCA phono plugs give the sound a rich, detailed presentation and layering, with a thick, full midrange and an elastic, powerful low end.4. DIY Accessories: RCA connector has a metal connector housing and is suitable for professional installers or home cinema enthusiasts who want to make high quality RCA cables.5. Unique Design: RCA male plug connector hot end hole is hollow in the middle for a natural loose sound.6. Silver Plating: RCA connectors are silver plated to effectively shield them from foreign noise and to restore clean currents for lossless signal transmission.Specification:Item Type: RCA Sound PlugConductor Material: BrassSurface Treatment: Silver PlatedQuantity: 4pcsImpedance: Ultra Low ImpedanceConnection: Solder TypeAccommodates Maximum Wire Diameter: Approx. 9mm/0.4inRange of Application: Widely Used in Professional Sound Equipment.Package List:4 xRCA Sound Plug