50ft 3.5mm Stereo M/F Audio Extension Cable - Extend the Reach of Your Devices with High-Quality Sound. Need to extend the reach of your headphones, portable microphone, iPod, or other audio device with a 3.5mm jack? Our 50ft 3.5mm stereo M/F audio extension cable is the perfect solution. This high-quality cable features gold-plated connectors to resist corrosion and ensure a reliable connection. It is also shielded to protect against EMI and RFI interference. This means that you can enjoy clear and rich audio from your devices, even over long distances.