This adapter is made of solid brass copper, with a much longer service life compared with those plastic connectors with metal painting. Compatible with most home audio equipment, such as amplifiers, mixing console, home theater devices or receivers. Features - Color: Golden and black. - Material: Copper. - Size: 4.30X0.70X0.70cm/1.69X0.28X0.28 inch. - Operating temperature range: 103 degree centigrade. - Rated load: 104VA. - Insulation resistance: 105M. - Helps you connect 3.5mm female socket devices to a 3.5mm male plug extension cable or adapter. - This 3.5 to 3.5 audio jack converter is made of solid brass copper, ensuring minimal signal loss. - The stereo jack adapter adopting gear grinding technique, 360 degree grip treads help easy plugging and unplugging. smartphones, tablets, or headphones with standard 3.5mm plugs to audio devices with a 3.5mm stereo jack. - Fine workmanship and creative appearance ensure its popularity and practicality. Package list: 3 x adapters