what materials are used to create headphones
In the coiled electromagnet, these materials have the big advantage that they can change magnetic field directions with only a minimal loss of energy. The cone in headphones is commonly made of plastic and/or paper rather than metal. This is because flexibility is more important than strength at this size. Some researchers have explored using a new compound material, graphene, to try to get increased strength and flexibility at the same time.
For in-ear headphones, rubber or silicone is common, as it has more flexibility and can thus fit comfortably but snugly into the ear or ear canal. More expensive in-ear models use a form of foam which can adjust to the specific shape of the user's ear canal.
Photo: My trusty Etymotic ER-6 noise-isolating earbud headphones. These work by passive noise cancelling: each earpiece has a pair of (washable) plastic suction cups that make a tight seal in your ear canal to stop noise getting in and music leaking out. If you prefer, you can pull off the plastic cups and use disposable, soft foam ones instead.