3.5 mm male plug headphone audio connector, soldering type, pure copper gold-plated structure. You can use this 3.5 mm headphone audio soldering jack to make any 3.5 mm cable by yourself. These 3.5 mm Stereo TRS 3-Ring Plug Connectors are suitable for audio and video applications that require a TRS plug, such as cellphones. Suitable for cables up to 6mm; if your cable is too thin, just use some sleeve to hold it properly to avoid movement. Easy to handle you really don't have to be a professional to do this.
Just insert the cables in the hoops, twist and lock in place, and only then solder