Headphone applications: Headphones are mostly used in mobile phones, walkmen, radios, portable video games and digital audio players.
The advantage is that you can listen to the stereo alone without affecting others; It can also isolate the sound of the surrounding environment, which is very helpful for people who use it in noisy environments such as recording studio, DJ, travel and sports.
Extended data:
Headphones classification:
1. Moving-coil earphone: The moving-coil earphone is the most common earphone, and its driving unit is basically a small moving-coil speaker, and the voice coil in the permanent magnetic field drives the diaphragm connected with it to vibrate.
2. Moving iron type: it is an earphone which is conducted to the center point of the micro-diaphragm through a connecting rod with precise structure, thus generating vibration and making sound. Can effectively reduce the area of the ear, and can be placed in a deeper ear canal.
3. Isomagnetism: The driving of the Isomagnetism earphone is similar to that of a reduced flat speaker. It embeds a flat voice coil into a thin diaphragm, which can make the driving force evenly distributed like a printed circuit board.
4. Static electricity: The static earphone has a light and thin diaphragm, which is polarized by a high DC voltage. The electric energy required for polarization is converted by alternating current and is also powered by batteries.
5. Electret: Electret headphones are also called fixed electrostatic headphones. Its diaphragm is polarized or polarized by electrostatic field emitted by polarized substances outside the diaphragm, and no special equipment is needed to provide polarization voltage.
Baidu encyclopedia-headphones