unexampled couplet of cordless headphones call the Model 2500 from Amphony that expend the 5.8GHz radio relative frequency rather than the more crowd 2.4GHz part of the spectrum :
“ Transmitting the audio signal at 5.8 GHz — rather of the currently usable 2.4 gigahertz — further eliminates the vulgar interference problem that the dispirited - frequency signal face from other 2.4 - GHz gimmick such as microwave oven ovens , cordless phones , Bluetooth machine , and wireless meshwork , ” say Amphony ’s Gunter Fellbaum . The Model 2500 ’s transmitter cuts out any unnecessary parallel - to - digital or digital - to - parallel spiritual rebirth and presents no audio overrefinement . Because the equipment uses RF , no modified line of sight issues arise : The headphones can pick up signals from behind walls and up to distances of 200 feet .
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