Headphones traditionally refer to a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby to hear. Owning a headphone could mean a different thing for different people. For some, it acts as a fashion statement. It’s easy to spot these people, the headphone is almost always just hanging around the neck.
1. The first pair of headphones was invented by Nathaniel Baldwin in 1910. He produced the first pair in his kitchen. It was sold to the Navy as a piece of radio equipment. But because Baldwin was making them in his kitchen, the production rate was very low, around 10 at a time.
2. In the early stages of invention, all the headphones were hand-made and were used to be sold only to the U.S. Navy.
3. Before the invention of amplifiers, "Telephone Receiver Earpiece" was the only source to listen to the electrical audio signals.
4. Focal Utopia by Tournaire is the most expensive headphones ever made, with a prize of 120,000 US dollars. These headphones are laced with gold and diamonds.
5. Earbuds/Earphones naturally increase the volume you hear by 9 decibels because they lay too near or inside your ear canal.
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