Everybody has experienced the problem of having to take or make a very important call on your cellular and not being able to understand a word you or the person you are calling, annoying ain’t it. Now comes noise-cancellation which is actually quite an old concept which works by having a separate microphone to pick up the undesired sound (noise) and generating a counter sound/noise or sound in an inverted waveform to cancel out the offending sounds giving clear and noise-free conversation.
The technology started out as a fad made available on expensive audio equipment like BOSE which came out with cordless noise cancelling headphones for it’s various audio video products. Nowadays, the technology can be found on Bluetooth cellular phone headsets like the one from Aliph code named “JawBone” which cancels out background noise when making and receiving a call allowing comfortable and natural conversation.
Devices using Bluetooth have similarities whatever form they may take for they all rely on radio frequencies to communicate with each other. They are paired-up or connected to each other allowing them to recognize each other which many people do not realize but there are tons of devices that use Bluetooth out on the market that they connect at all is the miracle of the technology. The radio frequency that “WiFi” uses is similar to what Bluetooth uses which makes pollution or noise very much abundant hence the need for the said noise cancellation technology. There are a lot of wireless Bluetooth headsets on the market for all kinds of devices such as mobile phones a comparison of which can be found on many reviews on the net with a certain search.