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@qikipedia Referring to this paper by the way. It has to be a special transmitter a regular phone (with a top frequency of 20kHz) wouldn’t allow them to communicate properly https://t.co/kJ73K9gwDZ
@qikipedia Referring to this paper by the way. It has to be a special transmitter a regular phone (with a top frequency of 20kHz) wouldn’t allow them to communicate properly https://t.co/kJ73K9gwDZ