About this item This 3.5mm female to 6.3mm male audio adapter allows you to connect your headphones or microphones with 1/8 inch plugs to audio devices such as home audio, amplifiers, guitar and piano with 1/4 inch stereo jack. All Pure Copper: Made of pure copper, ensuring a longer service life compared to plastic and gold plating. EXCELLENT SOUND AND HIGH QUALITY: Designed to minimize signal loss while preserving sound quality. Quick and Simple: Fool-proof 360 grip design with no installation requiredsimply plug and play. Dimensions: 4.96 x 2.2 x 0.47 inches.