Why are headphones marked L and R?
The left and right separation aims to make your listening experience more like live sound (or action if you are using your earphones for watching a movie). Your listening experience at a live music event will be influenced by where you sit in respect to the audio source.
What does N and I mean on headphones?
IP stands for Iphone and NK stands for Nokia.
Although, other companies also follow one of the two connecting methods, but Apple and Nokia was where it all started. An earphone Jack looks like this (Parts are labelled) The tip, two rings and sleeve are called conductor points.
Does left and right headphones matter?
But to hear stereo properly, you need the headphones on the right way round, otherwise, all the sounds will be reversed – left will come from the right and vice versa, and sounds from the front will sound like they’re coming from behind you.