Cable Matters 5-Pack, Gold Plated 3.5mm to 6.3 mm (1/4 inch) Male to Female Stereo Adapter 5-pack 3.5mm to 6.35mm stereo adapters allow a standard 3.5mm (1/8 inch) stereo port to accept a stereo cable with a 6.35mm (1/4 inch) plug Connect audio devices such as amplifiers and AV receivers to MP3 Players or smartphones with 3.5mm socket Convenient and cost-effective 5-pack 1/8 inch to 1/4 inch stereo adapters provide spare or replacement adapters to use on different audio systems Gold-plating resists corrosion and ensures minimal signal loss 360 degree grip treads help easy plugging and unplugging