This high quality stereo jack lead from Kenable is designed for connecting various audio devices together, such as from the headphone socket of your laptop to a portable speaker. It comprises two 3.5 mm (1/8") jack plugs connected by a 3-metre length of cable. To ensure the highest quality of signal transfer between your devices, the plugs' contacts are gold-plated, providing excellent electrical connection with the jack sockets they're plugged into.