The in-ear or vacuum headphones got their name due to the placement method. They are tightly inserted into the ear canal, reliably sealing the ear canal. Such devices can have a different design, but most often they are made in the form of compact plugs.
What are the advantages of headphones
In-ear headphones have a number of advantages:
- universality - connection through standard connectors with a diameter of 2.5 or 3.5 mm;
- compactness - portable nozzles are most convenient for the user;
- effective protection against ambient noise due to tight fit, full vacuum;
- high sound quality - creating an isolated camera in the ear canal.
The standard interface of these models allows you to connect them to any player or smartphone. Some users decide to buy in-ear headphones in order to listen to music during regular runs. In this case, additional devices for their fastening are purchased. Due to their compactness and high-quality sound, they are chosen by many music artists.
Device and application specifics
The vacuum earphone consists of several parts:
- compact plastic case made in different forms;
- copper wire, which may have a protective coating of gold;
- a connector transmitting a signal to a small dynamic emitter;
- narrow nozzle for broadcasting sound, fixing the external nozzle made of rubber.
Vacuum devices are often confused with earbuds because they have a common feature - placement inside the ear. But the main difference between these models comes down to their design. The first are equipped with built-in speakers, sound from which is transmitted through the nozzles. The latter do not have remote channels, so they do not have complete tightness.
Types of nozzles for vacuum models
The in-ear headphones are equipped with nozzles, on which the convenience of their use depends. Heads can be made of soft plastic or hard materials - silicone, acrylic. Additional criteria that must be considered when choosing them include design, size and thickness. The most popular models are inserted into the ear for 8-9 mm. Increasing this value improves insulation, sound quality, but decreases the level of comfort.
Typically, manufacturers sell in-ear headphones with sets of nozzles of different sizes. Such sets can be universal or replaceable. In the first case, they are fixed on the nozzles, have several protrusions for insertion to the desired depth. The second option consists of removable models, allowing the owner to experimentally select the most suitable head.
