A chemical property is a characteristic of a pure substance that describes its ability to change into different substances. For example, a chemical property of methane is that it can catch fire and burn in air. Physical properties can be observed or measured without changing the composition of matter.
The downsides are obvious: Almost everyone has headphones, speakers, and other gadgets based on the ubiquitous 3.5 mm headphone jack. Eliminating this connection could render these devices unusable, or at least force everyone to carry around an extra adapter. But Apple doesnât care.
Nov 15, 11 at 3:06pm (PST) ^. Your headphones use a standard 3.5mm connector, you shouldn't have to select or configure anything. Just plug them into your speakers or directly to the audio jack on your computer and sound will be routed to them.