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{|{| border="1" class="wikitable"| blah| Left Audio| blah| Right Audio| blah| Microphone| blah| GroundThen along came Apple with their iPod and iPhone audio devices. Rather than accepting an existing convention, Apple created chaos for device manufacturers by swapping the microphone and ground connections. {| border="1" class="wikitable"|+ Apple Convention|-| Tip| Left Audio|-| Ring| Right Audio|-| Ring| Ground|-| Sleeve| Microphone|}By preserving the left and right audio convention it allows the use of standard TRS headphones on apple devices. Although connecting TRS headphones does short the ground and microphone connection, it reportedly does no harm and full stereo audio is available in the headphones.