Cellet Gold Plated 3.5mm TRRS Male to Female Audio Adapter for Mobile Credit Card Reader, Headphones, Audio Aux, 6 Inch - Retail Packaging 3.5mm TRRS male to female connector, 6 inch long cord 4 pole male TRRS plug supports devices containing audio and microphone or video Gold plated connectors to ensure a clear connection Rubber outer casing shields against EMI and RFI Perfect for mobile credit card readers