The 3.5mm headphone jack is an industry standard audio plug. Most commonly used for connecting a pair of stereo headphones to your smartphone or 'piping' your audio from your phone to an external ...

It’s almost impossible to find a smartphone with a 3.5mm headphone jack these days, at least not in flagship phones. There’s also a big market for wireless headphones and earphones which are ...

It can support stereo and/or microphone, depending on the number of separate connector rings on the jack. Some phones offer only a 2.5 mm jack ... opt for placing a 3.5mm audio jack on this ...