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Headphones or earphones are fast becoming an indispensable device for all those who have one or other electronic devices from media players to phones, from computers to palmtops. People who use it regularly often tend to use it for long durations. There could be temporary or even permanent hearing impairment if the headphones are used at high volume. Often the listener increases the volume to drown outside noise in such places as aircraft, subways, large crowds or in traffic. The normal pain associated with higher levels of volume disappears. Longer periods of higher levels of volume could damage the ear. It is estimated that only about 5 percent stands such risks. Though there has been suggestions or limiting the volume of provide some form of warning has not gone well with listeners. Such safety precautions have not been introduced in the products in the market.

The risk of hearing impairment is lesser with in-ear headphones as well as canal phones. The seal of the on-ear headphone has the properties of noise isolation. This blocks external noise from entering the ear. So there is no need to increase the volume of the headphone to suppress external noise. Some countries have placed restrictions on use of headphones while driving vehicles which may include earphones in one ear also. With earphones on, the drivers may either not hear, for instance, a car horn, or may lose the sense of the surrounding which could be dangerous causing accidents. Similar there are other activities too that one should better keep the earphones off or at a low volume.

A number of companies manufacture headphones for DJs, professionals and Call Centers. There come in many models, styles and designs. The more reputed companies manufacturing headphones include AKG, Sennheiser, Grado, Bose and Sony. Sennheiser produces wired and wireless headphones as well as in-ear, mini and high definition headphones. The wired headphones manufactured by this company for instance include Sennheiser CX300 earphones, Sennheiser CX6, Sennheiser CX 500, Sennheiser CX 400, Sennheiser HD800, Sennheiser HD650, Sennheiser RS120 and Sennheiser PX 100. Details of all these products are found in the Internet. It is also possible to buy online.

It was Sony that popularized headphone when they introduced it with their Walkmans. Now it has become quite common to see it used with Discmans, audio amplifier, radio, Computers, CD player, home theater, portable DVD players, MP3s, DAT recorders, iPods, mobile phone, and iPhones.

In today’s generation, various companies have manufactured a lot of gadgets for the sake of pleasure. But, health is wealth and so people should always use these gadgets appropriately.

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