Connecting cell phone and computer audio through TRS and TRRS 3.5 mm audio jacks - Electrical Engineering Stack Exchange
Custom Cable Connection 100 Foot 3.5MM to 0.25 In TRS Stereo Balanced Cable - Walmart.com
Amazon.com: 40 Foot 1/4 Inch (6.35mm) TRS Right Angle to 1/4 Inch (6.35mm) TRS Right Angle - Canare Star Quad Balanced Microphone Cable by Custom Cable Connection : Musical Instruments