Background and Identification
Headphones are generally made of small loudspeakers worn on or around a user’s ears. These small loudspeakers are electroacoustic transducers and convert electrical pulses and signals into sounds. Headphones can come in many different varieties, such as in-ear, on-ear, over-ear, etc.
In-ear headphones, also known in a multitude of names such as in-ear monitors (IEMs), earphones, earbuds, or canalphones, are small headphones inserted into the ear canal itself. In-ear headphones are preferred by users for its convenience and portability. Since in-ear headphones are designed to fit inside the ear canal, they naturally block out ambient noise. Unlike over-ear headphones, the main concern of using in-ear headphones is increasing the volume extremely high enough to cause hearing loss.
As with over-ear headphones, in-ear headphones have benefited from the advancements in bluetooth technology. Bluetooth in-ear headphones have become increasingly popular, especially with the introduction of the Apple AirPods in the fall of 2016. AirPods sales nearly doubled to $6 billion in 2019 compared to the previous year, and is set to become the third largest product division of Apple. With this recent surge of in-ear headphones sales, other popular earbuds and earphones include the Sony WF-1000XM3 Wireless Earbuds, Jabra Elite 75t, Sennheiser Momentum True Wireless, etc.
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