Headphones are simply a set of small loudspeakers worn around or on the head for a user’s ears usually above or behind the ear. They are electronic transducers, that convert an electric signal into a corresponding sound, by utilizing some type of piezo or dynamic distortion control mechanisms. Earphones vary greatly in design, with many using the latest technology that is capable of providing the best possible sounds and beats. Some earphones are designed to be used in the case of a medical implant, as well as in the case of noise cancellation over wireless telephone headsets. Many headphones have also found their way into the world of home entertainment, as many people now use portable media players such as the iPod and Nintendo Wii. For the most part, it is recommended that one utilize a high quality headphone that produces a very clear and crisp sound for listening to music as well as movies or gaming systems.
One of the key components of any earphone is its microphone. Microphones allow for a degree of isolation from other sources of noise in order to produce an excellent level of audio quality in any situation. Earphones should be able to pick up subtle disturbances in the surrounding environment such as engine or phone tones. It is very important that the earphone you select has a microphone that is within about ten inches of the listening area. In addition, there are several factors that may contribute to enhancing the overall audio quality of any earphones. One of the main reasons why any earphone produces a better and more realistic sound than any others is because of the fact that it picks up and transmits the vibrations from any surrounding source of noise in just the right amount and frequency.
The last major component to any earphone is its power amplifier. The power amplifier amplifies the signal that is produced by the earphones and converts it to true sound waves. On the other hand, an amplifier that produces too much sound waves will produce an artificially effected sound, which may not be desirable when using earphones. The final result is the power amplifier that determines the level of the sound that is produced by the earphone.