Amazon.com: Premium Cord 3.5mm 4 Pin Jack Cable Audio and Voice Transmission Allows Use of Microphone Aux Headset Audio Connection Cable M/M Length 1m : Electronics
3.5mm Mini Female Jack Stereo 4 Pin 4 Wire Audio W/ Cable Cord Connector DIY 1FT | eBay
3.5mm Jack Female Audio Connector 4 Pin 3pin Dip Headphone Jack Socket Pj-320a Pj320b Pj320d Audio Interface Audio Jack Black - Connectors - AliExpress
DELOCK 65896: Adapter Audio Stereo Jack 3.5 mm 4 pin female > female 13 cm at reichelt elektronik
Aisens Jack 3.5 4 Pin M 2xJack 3.5 3 Pin H Audio Adapter 25 cm Black| Techinn
How to Hack a Headphone Jack
Plug your iPhone Earphone into a Standard 3-Conductor Jack
10pcs 3.5mm Female Audio Connector 4 Pin Dip Headphone Jack Socket Pj-320a Pj320a Audio Interface Audio Jack Black - Connectors - AliExpress
3.5mm Headphone Stereo Audio Mic Y Splitter,Dual 3.5 mm Plug (Audio + Microphone) to 4 Pole Comob Jack Aux Adapter for 4 pin 3.5mm Plug Smartphone Earphone - Newegg.com
Point Source Audio ADP-PHx4F PSA Headset Adapter Cable ADP-PHX4F
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
Pj320 3.5mm Headphone Audio Jack | Connector Headphone Jack 4 Pin - 100pcs/lot 3.5mm - Aliexpress
Headphone Jacks and Plugs: Everything You Need to Know - Headphonesty
3.5 mm Audio Jack Connector PCB Mount Female Socket 4Pin PJ-320A 5pcs - Walmart.com
Amazon.com: Conwork 2-Pack 3.5mm 4-Pin Universal Male to Male Auxiliary Extension Audio Stereo Cable Cord for Headphones -Black (3 Feet) : Electronics
How to Hack a Headphone Jack
3.5 mm Audio Jack Connector PCB Mount Female Socket 4Pin PJ-320A 20pcs - Walmart.com
3.5mm (1/8) 4-Pole (TRRS) Audio Plug Terminal Block : ID 2914 : $2.50 : Adafruit Industries, Unique & fun DIY electronics and kits