What are IR wireless headphones?
wireless infrared headphones (IR) use IR data transfer technology. The infrared refers to the belt of electromagnetic radiation just outside the visible spectrum of light, and for this reason it is sometimes called infrared light, although the term light is more often applied to the wavelengths visible to the human eye. IR wireless headphones receive an infrared radiation pulse signal from the transmitter that is connected to the output of another device such as television, computer, MP3 player or stereo. This signal carries data in the same way as radio waves carry data, and the headphones convert data to sound.
Infrared technology is used in a series of short -range wireless devices such as ubiquitous television remote controls. Equipment of this type operates in one of two ways, according to the supervision line or somewhat more versatile diffusion mode. Infrared radiation does not penetrate buildings or viable over long distances. Running TV remotelyThe controls that work generally on the basis of vision must be directed directly on the television from a relatively close range to work. The transmitter and the receiver must be able to "see each other". In general, the range of such devices is around 20 feet (6 meters).
Diffuse mode, sometimes called the scattering mode by some manufacturers, works by transmitting an infrared data signal in all directions at the same time. This allows the receiver to pick up the signal without direct supervision of the transmitter. IR wireless headphones often use this type of infrared transmission so that the user can move without fear of losing signal. However, this type of infrared transmission still has a very short range and generally works only if the transmitter and receiver are in the same room. The signal is blocked by the walls and the door closed.
term Infsamný Reder may be somewhat confusing because it is used to describe a range of different productss and technology. Many people are familiar with infrared kitchen appliances or thermal lamps. While these appliances use the same wavelengths of energy used in wireless IR and other such devices, the power for infrared data transmission is much lower and is no danger. Wearing wireless headphones does not cause a feeling of heat or damage to the user in any way as ever mistakenly believes.
6 The fact that the transmission is blocked by the walls makes it difficult to interfere or eavesdrop on the data current. Radio interference from other devices such as mobile phones, child monitors or TVs that use long reach or penetrating electromagnetic frequencies cannot produce interference, allowing infrared equipment to provide very clean signal with good sound transfer properties.