this 3.5mm female to 6.3mm male audio adapter is a convenient and cost-effective way to connect guitar, smartphones, tablets, iPod or headphones with standard 3.5mm 1/8 inch plugs to audio devices with a 6.35mm 1/4 inch stereo jack, making your favorite headphones or other devices compatible with most pro audio and home audio equipment, such as amplifiers, mixing console, home theater devices or AV receivers. ? EXCELLENT SOUND AND HIGH QUALITY: This 6.3 to 3.5 audio jack converter made of solid brass copper, with a much longer service life compared with those plastic connectors with metal painting. 24K Gold-plated connectors resists corrosion and ensures minimal signal loss. ? THOUGHTFUL DESIGN: The stereo jack adapter dopting gear grinding technique, 360 degree grip treads help easy plugging and unplugging. Mini size and portable. this connector 6.35mm Male to 3.5mm Female audio adapter is designed to connect your smartphones, tablets, iPod, MP3 or headphones with standard 3.5mm 1/8 inch to most pro audio and home audio equipment, such as amplifiers, guitar, mixing console, home theater devices, amplifiers or AV receivers Connectors - Connector 1: 6.35mm (1/4 Inch) Stereo Jack Male - Connector 2: 3.5mm (1/8 Inch) Stereo Jack Female Guaranteed Reliability * Gold-plated connectors resist corrosion and ensure minimal signal loss. * 360 degree grip treads help easy plugging and unplugging. * Made of solid brass copper, with a much longer service life compared with those plastic one.