Helps you connect 3.5mm female socket devices to a 3.5mm male plug extension cable or adapter. Connect smartphones, tablets, or headphones with standard 3.5mm plugs to audio devices with a 3.5mm stereo jack. 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. - Compatible with most home audio equipment, such as amplifiers, mixing console, home theater devices or receivers. - Made of solid brass copper, with a much longer service life compared with those plastic connectors with metal painting. - Small and light for maximum combat comfort, great for office and home use-video, singing, listening to songs, entertainment and more. - Durable material and excellent workmanship provide a maximum service life. - conveniently, it is to distinguish the positive and negative side, easy and simple for using jack plug adaptor. Package list: 3 x adapters