The 1/4 jack has mono and stereo type for your choice. Options include straight and right angle plugs, metal and plastic handles, two and three conductor. 1/4″ Jack options include open frame, enclosed straight and right angle, PC terminals and solder lugs, two and three conductor.
The jack connector, also known as phone jack, audio jack, headphone jack or jack plug, is a family of electrical connectors typically used for analog audio signals.
It has 2.5mm (3/32″), 3.5mm (1/8″) and 6.35mm (1/4″) size, the most popular size is 1/4 inch jack. Also, it has male and female two types, suitable for guitar pedal, media player, MP3 player, MP4 player, audio-video equipment, etc.