Since my headphones only have one wire to the speaker, how do they work? Don't speakers take two wires to work? - Quora
Network Calc
Amazon.com: Fancasee 2 Pack Replacement 3.5mm Male Plug to Bare Wire Open End TRS 3 Pole Stereo 1/8" 3.5mm Plug Jack Connector Audio Cable for Headphone Headset Earphone Cable Repair : Electronics
How to Hack a Headphone Jack
A guide to audio connectors and cable types - SoundGuys
Earphone 3.5 mm jack Pin Repair & 4 Wire Colour Code Connection | Headphone TRS Pin Repair - YouTube
What are the uses of the 4 different wires of earphones? - Quora
Amazon.com: Fancasee 2 Pack 6 ft Replacement 3.5mm Male Plug to Bare Wire Open End TRRS 4 Pole Stereo 1/8" 3.5mm Plug Jack Connector Audio Cable for Headphone Headset Earphone Microphone Cable
How to Hack a Headphone Jack
Fancasee (2 Pack) Replacement 3.5mm Male Plug to Bare Wire Open End TRRS 4 Pole Stereo 1/8" 3.5mm Plug Jack Connector Audio Cable for Headphone Headset Earphone Microphone Cable Repair - Black :