i was looking for the differences in blue tooth and infra red ,which are used in mobile phones, i mean why 2 ways of communications bith serve the same purpose don they ? then why the differntation , tes i know that both work in different frequencys but isn;t there some thing else which should be there, which ine is better ....

i tried googling it ,but of no use.no what i quite expected , may be you can help??