Features: Using copper conductors for lossless sound quality. Wire with woven mesh protection, effective tensile strength. Aluminum alloy housing, which does not fade and has beautiful appearance. The copper plug is gold-plated, with good transmission performances, low transmission loss, and is not easily oxidized, discolored after long-term use. Used for mobile phones, tablets, laptops, MP3/MP4 and other devices are connected to amplifiers active speaker with corresponding input interfaces. Supports bidirectional transmission, without distinguishing between positive and negative, can connect 3.5mm interface mobile phones and tablets to 2RCA interface active speakers and power amplifiers, connect 2RCA interface AUX players to 3.5mm interface desktop speakers and power amplifiers. Specifications: Material: Nylon Length: 50cm, 1m, 1.8m, 300cm, 5m, 10m(optional) Length: about 50cm/19.6", 1m/3.2ft, 1.8m/5.9ft, 300cm/9.8ft, 5m/16.4ft, 10m/32.8ft Package Includes: 1x 3.5mm Male to 2RCA Male AUX Cable note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.